1989-1998 (Series 1)
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Land Rover Discovery V8 Engine
1989-1998 (Series 1) |
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Page Contents
Standard Engines Performance Engines Engine Numbers Power Outputs Full & Long Engines Long Engine Build Up Long & Full Engines - Ancillary Components All engines - oil pump priming. Timing Covers & Serpentine Drive Belts Short Engines Short Engines - Ancillary Components All engines - oil pump priming. Full Engine Long Engine Short Engine Engine Cradles New 'Long' Engine New 'Full' Engine Recon 'Full' Engine Timing Covers & Serpentine Drive Belts Basic Specifications Timing Covers & Serpentine Drive Belts Engine Balancing Important Notes COMPRESSION RATIOS - CYLINDER HEADS & SHORT ENGINES V8 Engine Rebuild Kit Sump Pan/Oil Pick-Up & Dipstick
Cylinder Head Identification
Introduction
Important Notes
Engine Definitions
Full Engines - Standard
Full Engines - Performance
Full Engine Installation Kits
Short Engines
Cylinder Block Components
Sump Pan/Oil Pick-Up & Dipstick
Crankshaft
Crankshaft Pulley
Flywheel & Driveplate
Pistons
Piston Rings
Con Rod
Oil Pump & Filter
Oil Cooler
Cylinder Heads - Standard
Cylinder Heads - Performance
Head Gaskets
Cylinder Head Bolts
Valves, Guides & Springs
Rocker Gear
Rocker Covers
Camshaft
Camshaft Components
Timing Chain
Timing Cover & Fittings
Only one engine has been fitted to the Discovery continuously from its introduction in 1989 to the present: Land Rovers all aluminium, pushrod V8. Essentially the same engine as fitted to Rovers big saloons of the sixties and seventies, the V8 has been produced in vast quantities over the years.
The reasons for the engine's tremendous success are obvious: simplicity, reliability, light weight and adaptability: it has been fuel injected, supercharged, turbo charged and run on LPG. It has powered circuit racers, drag racers, rally cars and off-roaders. And last but not least, parts are cheap and readily available.
The Discovery, like its sister the Range Rover, is a large vehicle, weighing-in at around 2 tonnes. Nevertheless, it has proved itself capable of handling more power than the early 3.5 carb engine produced. Realising this, Land Rover engineers enlarged the V8 engine to 3.9 litres, gaining nearly 40% more power & torque with no loss of fuel economy. For the Range Rover even bigger versions of the engine followed, which boosted power & torque without any adverse effect on the long life and reliability of the V8 and proved beyond doubt that the way to more power is to enlarge the engine.
With this in mind, we have developed a range of Standard and Performance specification engines for the Discovery, based on a choice of sizes: 3.5, 3.9,4.0, 4.6, 4.8 & 5.2 litres. Power outputs range from 150bhp of the standard 3.5 to over 300bhp from the 5.2 Performance engine, and all will fit into any V8 Discovery.
All you have to do is decide how much power you'd like!
Standard engines are the choice for anyone wishing to replace a worn-out engine with one of a similar type. These engines are a straight swap, enabling the existing ancillary components and fuel system to be retained.
Performance engines incorporate modifications designed to increase horsepower & torque - such as big-valve cylinder heads and fast-road camshafts - and usually require modifications to the fuel system (including ECU if fitted).
To gain maximum benefit from our Performance engines, we also recommend fitting tubular manifolds (Sports exhaust system) and K & N air filter(s).
V8 Engine Number Identification
We have included a reference chart of V8 engine numbers from 1989 onwards, which will help you to identify the engine fitted to your Discovery.
The engine number is stamped on the left hand side of the block deck, adjacent to the dipstick tube.
The chart also contains a brief description of features, such as compression ratio and gearbox type, and also the approximate year. Therefore, if your engine has been changed at some time, it should still be possible to identify it correctly. To ensure you receive the correct parts, please have your engine number available before ordering.
The table below is a guide to typical power & torque outputs of our range of V8 Full engines. Please note that these figures are intended only as an indication of the performance potential of each engine. In reality, power figures may vary considerably depending on final application; choice of induction system, exhaust and intended RPM range all have a significant effect on final power output.
To achieve the required power, it may be necessary to modify the fuel system - particularly on fuel injection engines. See Fuel section for details, or speak to our Sales Department for advice.
Each Performance Full engine is supplied with a dyno test sheet, giving actual power figures obtained on the dyno. All Full engines are bench run.
These engines are supplied less rocker gear, pushrods, sumps & timing covers. It is absolutely essential that these items are checked, cleaned and correctly assembled prior to running your engine.
Check for wear on the underside of rocker shafts, on either side of the pedestals.
Check for wear on the valve tips of rocker arms. Check pushrods for straightness and equal length.
Clean the sump and oil pick-up pipe.
Clean the timing cover and check the oil pump housing for wear and damage.
Replace all seals and gaskets.
If in any doubt, always replace with new components.
If you are re-fitting ancillary components - water pump, alternator, distributor, carburettors or fuel injection - check that they are suitable for re-using. We recommend having carburettors serviced and fuel injectors cleaned/replaced before re-fitting.
The cooling system - including the radiator and heater - should be flushed through with clean water and the hoses checked before re-using.
The correct ratio (minimum 33%) of antifreeze must be maintained at all times. Oil coolers should be flushed of old engine oil. Engine & gearbox mountings should be checked and renewed as necessary.
The clutch operating system should be checked for wear.
Rocker covers should be cleaned internally.
All engines not fitted with crank-driven oil pumps should have their oil pumps primed before initial start-up. Please consult a workshop manual for this procedure.
Failure to observe these points may lead to engine damage and may also invalidate the engine's warranty.
Full engines are supplied with fitted timing covers, as follows:
The timing cover supplied is the Land Rover type, with distributor-driven oil pump (as fitted to Range Rover up to 1994).
For 3.9 litre engines and above, both types of timing cover can be exchanged for the 'intermediate' type timing cover - which incorporates a crank-driven oil pump, provision for a distributor and serpentine ancillary drive belt - for a small extra charge. If required, please request this when ordering your engine (ancillaries fitted to pre '95 vehicles may not be compatible with serpentine timing covers - please contact our Sales Department to verify this).
When building up a short engine to a complete assembly, it is essential to thoroughly examine every part you intend to reuse. We recommend that you pay special attention to the camshaft, followers, pushrods & rocker gear, checking carefully for signs of wear; reusing worn parts is false economy and you risk contaminating your new engine with abrasive particles.
The following parts MUST be meticulously cleaned prior to fitting:
Sump & oil pick-up pipe
Timing cover & oil pump assembly
Cylinder heads
Rocker covers
Failure to observe these points may lead to engine damage and may invalidate the engine's warranty.
If you are re-fitting ancillary components - water pump, alternator, distributor, carburettors or fuel injection - check that they are suitable for re-using. We recommend having carburettors serviced and fuel injectors cleaned/replaced before re-fitting.
The cooling system - including the radiator and heater - should be flushed through with clean water and the hoses checked before re-using. The correct ratio (minimum 33%) of antifreeze must be maintained at all times. Oil coolers should be flushed of old engine oil. Engine & gearbox mountings should be checked and renewed as necessary.
The clutch operating system should be checked for wear.
All engines not fitted with crank-driven oil pumps should have their oil pumps primed before initial start-up. Please consult a workshop manual for this procedure.
Failure to observe these points may lead to engine damage and may also invalidate the engine's warranty.
Note: All engines are sold on an exchange basis. The old unit must be a suitable type - please verify with our Sales Department if you intend to upgrade and install a different engine to that fitted. All full engines, including 4.6 litre, are suitable as direct replacements for any Rover V8 engine. However, modifications to the fuel system (including ECU if fitted) may be required when replacing a 3.5 or 3.9 litre engine with a larger capacity unit.
All Standard engines are compatible with unleaded petrol/lpg and are bench run.
For manual transmission vehicles, we recommend fitting a new clutch while the engine is being replaced.
Built-up engine assembly, comprising block (crank, rods & pistons), cylinder heads (valves, guides & springs), camshaft & timing gear, rocker gear, pushrods and fitted sump, timing cover and oil pump.
Full engines are either bench-run or dyno tested.
Built-up block & cylinder heads assembly, including crank, rods & pistons, valves, guides & springs (less rocker gear), plus camshaft, followers & timing gear.
Built-up block assembly, comprising crank, rods & pistons.
All engine assemblies are bolted to a steel cradle, for ease of handling and to minimise the risk of damage whilst in transit.
There is a surcharge for the cradle, refundable on its return. When returning an exchange engine, use the cradle for sending the old unit back and we will then refund both surcharges together.
New long engines are available in 4.0 litre and 4.6 litre capacities. They comprise a new, cross-bolted, large-bearing block assembly, fitted with new cylinder heads and standard camshaft & timing gear.
Note: Crank spacer STC1893SPACER is required for non serpentine timing covers.
New Long Engine;
4.0 Litre - (1) - ERR5012ST
4.6 Litre - (1) - ERR5013ST
New full engines are available in 3.5 litre, 4.0 litre and 4.6 litre capacities. Specification is the same as new long engines (3.5 litre blocks are not cross-bolted), with the addition of new timing cover/oil pump assembly, new sump and new rocker gear.
New Full Engine;
3.5 Litre - (1) - RA1227
4.0 Litre - (1) - RA1228
4.6 Litre - (1) - RA1229
Recon full engines are available in 3.5 litre, 3.9 litre and 4.6 litre capacities. They comprise a reconditioned block (relinered for 3.9), crankshaft & con rods with new pistons, or new, cross-bolted short engine assembly (4.6 litre); new camshaft & followers, new timing gear and reconditioned cylinder heads with new valves, guides & springs. They are also fitted with new rocker shafts & rocker arms, reconditioned timing cover (inc. new oil pump gears, pressure switch & relief valve) and sump.
Recon Full Engine;
3.5 Litre - (1) - RA1227R
3.9 Litre - (1) - RA1228R
4.6 Litre - (1) - RA1229R
Note: All engines are sold on an exchange basis. The old unit must be a suitable type - please verify with our Sales Department if you intend to upgrade and install a different engine to that fitted. All full engines, including 4.6 litre, are suitable as direct replacements for any Rover V8 engine. However, modifications to the fuel system (including ECU if fitted) may be required when replacing a 3.5 or 3.9 litre engine with a larger capacity unit.
All Standard engines are compatible with unleaded petrol/lpg and are bench run.
For manual transmission vehicles, we recommend fitting a new clutch while the engine is being replaced.
Full engines are supplied with fitted timing covers, as follows:
The timing cover supplied is the Land Rover type, with distributor-driven oil pump (as fitted to Range Rover up to 1994).
For 3.9 litre engines and above, both types of timing cover can be exchanged for the 'intermediate' type timing cover - which incorporates a crank-driven oil pump, provision for a distributor and serpentine ancillary drive belt - for a small extra charge. If required, please request this when ordering your engine (ancillaries fitted to pre '95 vehicles may not be compatible with serpentine timing covers - please contact our Sales Department to verify this).
Performance engines are available in 4.0, 4.6, 4.8 & 5.2 litre capacities, giving a broad range of power and torque outputs to suit every budget.
They are built to an extremely high specification, which guarantees maximum power and long life.
Please note: specifications can be altered to suit your individual requirements - from ultra-big valve cylinder heads and solid-lifter camshafts to full turn-key Performance engines - phone us to discuss your needs.
All Performance engines are built around a crossbolted, large-journal block; all feature a Performance camshaft (the type depends on the intended application) and double roller timing chain sets. Finally, Performance engines are all fitted with fully ported and polished, big valve cylinder heads, to Stage 3 specification or above (See Performance Cylinder Heads for details).
Performance Full Engine;
4.0 Litre - (1) - RA1230R
4.6 Litre - (1) - RA1231R
4.8 Litre - (1) - RA1232R
5.2 Litre - (1) - RA1339
Note: All engines are sold on an exchange basis. The old unit must be a suitable type - please verify with our Sales Department if you intend to upgrade and install a different engine to that fitted. All full engines, including 5.2 litre, are suitable as direct replacements for any Rover V8 engine. However, modifications to the fuel system (including ECU if fitted) may be required when replacing a 3.5 or 3.9 litre engine with a larger capacity unit.
All Performance engines are compatible with unleaded petrol/lpg and are bench run.
For manual transmission vehicles, we recommend fitting a new clutch while the engine is being replaced.
Full engines are supplied with fitted timing covers, as follows:
The timing cover supplied is the Land Rover type, with distributor-driven oil pump (as fitted to Range Rover up to 1994).
For 3.9 litre engines and above, both types of timing cover can be exchanged for the 'intermediate' type timing cover - which incorporates a crank-driven oil pump, provision for a distributor and serpentine ancillary drive belt - for a small extra charge. If required, please request this when ordering your engine (ancillaries fitted to pre '95 vehicles may not be compatible with serpentine timing covers - please contact our Sales Department to verify this).
All Performance engines are dynamically balanced (ie their rotating components are balanced individually and not as one assembly). The benefit of balancing in this way is that individual components can be replaced, if need be, without upsetting the balance of the whole engine.
However, the benefits of balancing the engine are lost if any of the associated rotating parts are not also balanced; therefore, we strongly recommend that your crankshaft pulley and flywheel (manual transmission vehicles) are neutrally balanced before being fitted to your engine.
As there are numerous variations of crankshaft pulley and flywheel, the easiest way to make sure you have the correct, balanced components for your needs is to send us your original crank pulley and flywheel for balancing at the time of placing your engine order. These items will then be balanced (at extra cost) and returned to you with your engine.
Engine Installation Kit - (1) - RA1236
Includes oil, oil filter gaskets etc.
Bolt Kit - (1) - RB7130
Kit includes engine to bellhousing bolts & washers.
SHORT ENGINE BUILD-UP
When building up a short engine to a complete assembly, it is essential to thoroughly examine every part you intend to reuse. We recommend that you pay special attention to the camshaft, followers, pushrods & rocker gear, checking carefully for signs of wear; reusing worn parts is false economy and you risk contaminating your new engine with abrasive particles.
The following parts MUST be meticulously cleaned prior to fitting:
Sump & oil pick-up pipe
Timing cover & oil pump assembly
Cylinder heads
Rocker covers
Failure to observe these points may lead to engine damage and may invalidate the engine's warranty.
Short Engines - Ancillary Components.
If you are re-fitting ancillary components - water pump, alternator, distributor, carburettors or fuel injection - check that they are suitable for re-using. We recommend having carburettors serviced and fuel injectors cleaned/replaced before re-fitting.
The cooling system - including the radiator and heater - should be flushed through with clean water and the hoses checked before re-using.
The correct ratio (minimum 33%) of antifreeze must be maintained at all times. Oil coolers should be flushed of old engine oil.
Engine & gearbox mountings should be checked and renewed as necessary.
The clutch operating system should be checked for wear.
All engines - oil pump priming.
All engines not fitted with crank-driven oil pumps should have their oil pumps primed before initial start-up. Please consult a workshop manual for this procedure.
TIMING COVERS
If the timing cover you intend to fit to your short engine incorporates a crank-driven oil pump, please inform the Sales Department at the time of ordering (3.5 & 3.9 litre Standard Short Engines only).
Uprated 3.9 litre Short engines, as well as all Short Engines of 4.0 litres and above, are suitable for timing covers which incorporate crank-driven oil pumps. If fitting the earlier type of timing cover - with camshaft-driven oil pump - to a short engine of 4.0 litres or above, please also request crank spacer, part no. STC1893SPACER, which will ensure the crankshaft pulley is securely fitted. If in any doubt, a member of our Sales Department will be pleased to help you.
There are various different Rover V8 cylinder heads available, with different combustion giving a variety of compression ratios when fitted to a short engine. Therefore, you will need combustion chamber size of the cylinder heads that you intend to use in order to be able to calculate the engine's compression ratio.
As a general rule, cylinder heads up to the introduction of Series 2 Range Rover (1994) have approximately 34-36cc combustion chambers. From the introduction of Series 2 Range Rover (4.0 & 4.6 litre engines), they have approximately 28cc combustion chambers (If in doubt, cylinder heads fitted to 4.0 & 4.6 litre engines have only two rows of cylinder head bolts; earlier engines have three rows).
Refer to the table below of Short Engine & Cylinder Head Applications for more detailed information.
This information does not take into account any machining work done on the cylinder heads in the past.
In certain circumstances, it may be cheaper to purchase a pair of reconditioned cylinder heads than to try to match a pair of unknown heads to a Short Engine.
Alternatively, it may be worth considering a Full Engine, which is supplied complete with fitted cylinder heads.
3.5 Litre;
New Short Engine
Comprises new block/crank/bearings/pistons/rods (assembled). Less cam & followers.
Low Compression (8.13:1) - (1) - ETC7714
High Compression (9.35:1) - (1) - RB7121
Reconditioned Short Engine (exchange)
Comprises recon block, rebored with new pistons/cam bearings/reground crank & new bearings (assembled).
Less cam & followers.
Low Compression (8.13:1) - (1) - ETC7714R
High Compression (9.35:1) - (1) - RB7121R
3.9 Litre;
New Short Engine - (1) - RB7487
Comprises new block/crank/bearings/pistons/rods (assembled). Less cam & followers.
Reconditioned Short Engine - (1) - RB7487R
Comprises recon block, relinered with new pistons/rings/cam bearings/reground crank & new bearings (assembled). Less cam & followers.
Uprated Short Engine - (1) - RB7487UR
Comprises new, large journal block, cross-bolted & ARP mains studs. Crank/rods & pocketed pistons. Lightened & balanced assembly. Less cam & followers.
4.2 Litre;
New Short Engine - (1) - ERR4171
Comprises block/crank/bearings/pistons/rods (assembled). Less cam & followers.
4.0 Litre;
New Short Engine
Series 2 Range Rover application.
NB. Unsuitable for use with pre '95 heads as low compression ratio results.
Large journal, cross-bolted type.
Comprises new block/crank/bearings/pistons/rods (assembled). Less cam & followers.
Low Compression * (8.13:1) - (1) - STC1890
High Compression * (9.35:1) - (1) - STC1891
*Please see Note regarding Compression Ratios - Cylinder Heads & Short Engines.
4.6 Litre;
New Short Engine
Series 2 Range Rover application.
NB. Unsuitable for use with pre '95 heads as low compression ratio results.
Large journal, cross-bolted type.
Comprises new block/crank/bearings/pistons/rods (assembled). Less cam & followers.
Low Compression * (8.13:1) - (1) - STC1892
High Compression * (9.35:1) - (1) - STC1893
*Please see Note regarding Compression Ratios - Cylinder Heads & Short Engines.
Note:When using this short engine to replace earlier type (3.5 or 3.9) engines, a crank spacer - part no. STC1893SPACER - may be required. Please enquire for details.
Sump pan may also require relieving to allow swing clearance for front web of crank.
New Short Engine - High Compression
Pre-Series 2 Range Rover applications.
Suitable for use with pre-Series 2 Range Rover cylinder heads (see Notes Compression Ratios, Cylinder Heads & Short Engines, right).
Large journal, cross-bolted type.
Comprises new block/crank/bearings/pistons/rods (assembled). Less cam & followers.
High Compression * - (1) - STC1893HC
*Please see Note regarding Compression Ratios - Cylinder Heads & Short Engines.
Note:When using this short engine to replace earlier type (3.5 or 3.9) engines, a crank spacer - part no. STC1893SPACER - may be required. Please enquire for details.
Sump pan may also require relieving to allow swing clearance for front web of crank.
4.8 Litre;
New Short Engine - (1) - RB7676
Comprises large journal, cross-bolted block & long stroke (86mm) crank. ARP mains studs, new pistons & rings. Less cam & followers.
Note:When using this short engine to replace earlier type (3.5 or 3.9) engines, a crank spacer - part no. STC1893SPACER - may be required. Please enquire for details.
Sump pan may also require relieving to allow swing clearance for front web of crank.
5.2 Litre;
New Short Engine - (1) - RB7682
Comprises large journal, cross-bolted block, fitted with special 96mm bore liners, long stroke (90mm) crossdrilled crank, steel rods & new pistons (90mm stroke).
Lightened & balanced assembly. Less cam & followers.
Note:When using this short engine to replace earlier type (3.5 or 3.9) engines, a crank spacer - part no. STC1893SPACER - may be required. Please enquire for details.
Sump pan may also require relieving to allow swing clearance for front web of crank.
FOR THE DIY ENTHUSIAST!
These kits include all the components needed for a 3.5 litre engine rebuild or conversion to 3.9 litres.
You will need to have any necessary machining work carried out, such as reboring (plus re-sleeving for 3.9 litres) and cylinder head re-facing etc.
The kits are based on the Land Rover V8 engine; please note that your crankshaft is required in exchange.
For export customers, the crankshaft can be removed from the kit and a price adjustment made, allowing you to have the grinding done locally.
Kit Contents:-
Crankshaft - reground (exchange)
Bearing shells to suit
Piston set including rings and pins:
3.5 litre (+ 0.020") (9.75:1)
3.9 litre (standard) (9.35:1)
Piston liner set (3.9 litre only)
Oil Filter
Sump gasket set inc oil seals
Timing chain, crank sprocket, cam sprocket
Camshaft and 16 followers
Valves - Engine set (16)
Valve guides (16)
Valve stem oil seal (inlet) (8)
Valve springs (16)
Rocker shaft (2)
Rocker arms (16)
Head gasket set
Core plug engine set
Engine Rebuild Kit;
3.5 Litre - (1) - RB20283-5
3.9 Litre - (1) - RB20283-9
Cylinder Block - bare;
3.5 Litre - (1) - ERC6934
3.9 & 4.2 Litre - (1) - ERR7350
4.0 & 4.6 Litre - (1) - LCF104860
Series 2 Range Rover Type.
Cylinder Liner Set - 3.9 litre - (1) - RB7486
Set of 8 liners for converting 3.5 engines to 3.9 litre bore.
Also suitable for replacing the liners in an existing 3.9 litre (or larger capacity) engine.
Liner & Piston Set - 3.9 litre - (1) - RB2029
As above, but kit includes standard size 9.35:1 compression pistons and rings for 3.9 conversions.
Head Gasket Set;
3.5 Litre (88.9mm bore)
Tin Head Gaskets - (1) - GUG1066HS
Composite Head Gaskets * - (1) - GUG1066HSCOM
3.9/4.2 Litre (94mm bore)
3 rows of cylinder head bolts.
Tin Head Gaskets - (1) - RB7447
Composite Head Gaskets * - (1) - RB7447COM
3.9/4.2/4.0/4.6 Litre (94mm bore)
2 rows of cylinder head bolts.
Composite Head Gaskets * - (1) - RA1233
5.2 Litre (96mm bore)
Composite Head Gaskets * - (1) - RB7684
Head Gasket Only;
3.5 Litre (88.9mm bore)
Tin Gasket - (2) - GEG340
Composite Gasket * - (2) - GEG340COM
3.9/4.2 Litre
3 rows of cylinder head bolts.
Tin Gasket - (2) - RB7448
Composite Gasket - (2) - RB7448COM
3.9/4.2/4.0 & 4.6 Litre
2 rows of cylinder head bolts.
Tin Gasket - (2) - ETC7819
Composite Gasket * - (2) - ERR7217
5.2 Litre (96mm bore)
Composite Gasket * - (2) - RB7685
*Composite head gaskets are thicker than standard tin gaskets and will therefore lower the engine's compression ratio. Ideal for correcting compression ratio when heads/ block faces have been skimmed. (Not applicable 1995 on).
Approximate gasket thicknesses are as follows:
Standard (tin) gaskets 0.5mm
Composite gaskets 1.2mm
Typical effect on compression ratio:
Standard (tin) gaskets 3cc
Composite gaskets 10cc
Sump Gasket Set;
All models to 1991 - (1) - GUG1538CS
All models 1992 onwards - (1) - STC1639
Sump Gasket Only - (1) - AJM539
Seal - rear main bearing cap - (2) - 611089
Cruciform seal.
Crankshaft Oil Seal (rear) - (1) - ERR2640
Timing Cover Oil Seal (front) - (1) - ERR6490
Core Plug Set - (1) - RB7105
All engines.
Cam Bearing Set;
All engines except 4.0 & 4.6 - (1) - RTC5918A
4.0 & 4.6 Models - (1) - STC1961
Dowel - bellhousing flange - (2) - 602141
Drain Tap - block - (2) - 602915
Drain Plug - (2) - 129077
Alternative to tap.
Core Plug - (2) - 612898
Lower bellhousing flange.
Bolt - main bearing cap - (10) - 602130
All models.
Stud Kit - main bearing cap - (1) - RB7456
Used instead of standard main bearing bolts, studs provide superior clamping for main bearing caps, preventing them from coming loose. (Engine set).
Cross-Bolt - main bearing cap - (9) - FB110137
4.0 & 4.6 litre engines.
Hex-Screw - main bearing cap - (1) - SS110555
4.0 & 4.6 litre engines.
Oil Seal - (9) - ERR3330
For FB110137.
Oil Seal - (1) - ERR3331
For SS1100555.
Stud - front of block - (1) - 252513
Except 4.0 & 4.6 litre engines.
Plug - front of block - (4) - 602147
Breather Pipe - crankcase - (1) - 603143
Early engines.
Core Plug - rear of block - (1) - 154545
Later models - replaces breather.
Core Plug - side & rear of block - (8) - 602152
Core Plug - camshaft rear - (1) - 602146
Threaded Plug;
All engines except 4.0 & 4.6 - (2) - 602212
4.0 & 4.6 engines - (2) - ERR4314
Sump Pan - (1) - ERR4633
Sump Gasket Set - (1) - GUG1538CS
Sump Gasket Only - (1) - AJM539
Sump Bolt/Washer - (16) - SH505051
Drain Plug - sump - (1) - 603659
Washer - sump drain plug - (1) - 213961
Oil Pick-Up Strainer - (1) - ERR3677
Oil Screen - (1) - 602070A
Gasket - pick-up strainer - (1) - 90602068A
Setscrew - strainer to block - (2) - 253407
Spring Washer - setscrew - (2) - GHF331
Dipstick - (1) - ERR1922L
Dipstick Tube - (1) - ERR4556
'O' Ring - dipstick tube - (1) - 602545
Crankshaft;
3.5 & 3.9 Litre
3.9 litre up to the following engine nos only:
35D08928B, 36D25155B, 37D01932B, 38D27238B.
Reground (including bearings) - (1) - 612989RTO94
3.9 Litre
Above engines numbers onwards.
New (less bearings) - (1) - ERR4060
4.0 Litre
New (less bearings) - (1) - ERR5090
4.6 Litre
New (less bearings) - (1) - ERR5091
4.3 & 4.8 Litre 'Stroker Kits' *
*See Stroker Kits technical jotting.
4.3 Litre Kit - (1) - RB7678
4.8 Litre Kit - (1) - RB7677
Stroker Kits
These kits enable you to enlarge the cubic capacity of your existing engine by increasing the stroke, hence the name 'stroker'. The kits comprise a brand new, high quality crankshaft, conrods and pistons (with bearings and piston rings supplied).
The stroke is increased from the standard 3.5/3.9 engines 71.1mm to a massive 86mm, (longer than the standard 4.6 litre stroke of 82mm) giving a capacity of 4.3 litres on a 3.5 engine and 4.8 litres on a 3.9 engine. Both engines require a 20 thou rebore before fitting. Finally, a small amount of grinding is required to the bottom of two cylinder liners (full instructions supplied) to allow clearance for crank rotation.
The result of the extra stroke is a huge increase in torque, even on an otherwise standard engine. Alternatively, you have the basis of a high performance engine, to which you can add our fully modified, big valve cylinder heads, uprated camshaft and sports exhaust system.
If you would prefer, you can send us your 3.5 or 3.9 block and we will do the work for you. Please contact our sales department for a fitted price.
Main Bearing Set;
All models except 4.0 & 4.6 Litre Engines
Standard Size - (1) - RTC1718
Oversize +0.010" - (1) - RTC1718-010
Oversize +0.020" - (1) - RTC1718-020
Oversize +0.030" - (1) - RTC1718-030
Oversize +0.040" - (1) - RTC1718-040
Oversize +0.060" - (1) - RTC1718-060
4.0 & 4.6 Litre - (1) - STC1425
Note: The latest bearing sets feature thrust plates only on the upper half of centre bearing.
Main Bearing Set - heavy duty;
All models except 4.0 & 4.6 Litre Engines
Standard Size - (1) - RB7452
Oversize +0.010" - (1) - RB7452-010
Oversize +0.020" - (1) - RB7452-020
Bolt - main bearing cap - (10) - 602130A
All engines.
Stud Kit - main bearing cap - (1) - RB7456
Used in our Performance engines instead of standard main bearing bolts, these ARP studs provide far
superior clamping for main bearing caps, preventing them from coming loose. (Engine set).
Cross-Bolt - main bearing cap - (9) - FB110137
4.0 & 4.6 litre engines.
Hex-Screw - main bearing cap - (1) - SS110555
4.0 & 4.6 litre engines.
Oil Seal;
For FB110137 - (9) - ERR3330
For SS110555 - (1) - ERR3331
Crankshaft Oil Seal (rear) - (1) - ERR2640
Timing Cover Oil Seal (front) - (1) - ERR6490
Spigot Bush - crankshaft - (1) - 549911
Woodruff Key;
All 3.5, 3.9 & 4.2 up to 1992 - (1) - 90602025A
3.9 & 4.2 1992 onwards - (1) - ERR2846
Crankshaft Sprocket - all models - (1) - 90602372A
Bolt - crankshaft pulley - (1) - ERC417A
Washer - crankshaft pulley - (1) - ERC416A
Reinforcing Plate - (1) - 602587
Pulley - water pump/alternator belt;
3.5 Litre - (1) - ETC5679
3.9 Litre - (1) - ERR4866
Vibration Damper;
3.5 Litre - (1) - ETC7340
3.9 Litre - (1) - ERR3442
Pulley - power steering belt;
3.5 Litre - (1) - ETC4330
3.9 Litre - (1) - ERR2799
Balancing Rim;
3.5 Litre - (1) - 603301
3.9 Litre - (1) - ETC7996
Mud Deflector - (1) - 613671
Bolt - crankshaft pulley assembly - (6) - BH605141
5/16 UNF" x 1 5/8".
Nut - all models - (6) - NH605041
Flywheel (manual) - (1) - ERR5575
Ring Gear - all manual models - (1) - 611323AMANUAL
Bolt - flywheel to crankshaft - (6) - SH607081
Driveplate (automatic) - (1) - FRC7851
Complete assembly.
Bolt - driveplate to crankshaft - (6) - SS607061
Ring Gear (auto) - (1) - 603340
Bolt - ring gear to driveplate - (10) - FTC4388
Washer - ring gear bolt - (10) - 610736
Spacer - driveplate to crankshaft - (1) - FTC651
Spigot Aligner (auto) - (1) - FRC7075
Bolt - spigot aligner (auto) - (4) - BH110111
Washer - spigot aligner bolt - (4) - WL110001
Converter Drive Plate - auto - (1) - FRC7081
Buttress Ring - auto - (1) - FRC7080
Selective Shim - torque converter height;
1986 to New Range Rover.
1.25mm - (ar) - FRC9203
1.45mm - (ar) - FRC9205
1.65mm - (ar) - FRC9207
1.85mm - (ar) - FRC9209
2.05mm - (ar) - FRC9211
Piston Set;
Piston sets comprise 8 pistons complete with rings & gudgeon pins.
3.5 Litre
8.13:1cr
Standard Size - (1) - RB7104
Oversize +0.020" - (1) - RB7104-020
Oversize +0.040" - (1) - RB7104-040
9.35:1 cr
Standard Size - (1) - RB7246
Oversize +0.020" - (1) - RB7246-020
Oversize +0.040" - (1) - RB7246-040
9.75:1 cr
Standard Size - (1) - RB7342
Oversize +0.020" - (1) - RB7342-020
Oversize +0.040" - (1) - RB7342-040
10.5:1 cr
Standard Size - (1) - RB7309
Oversize +0.020" - (1) - RB7309-020
Oversize +0.040" - (1) - RB7309-040
3.9 Litre
Standard Size
8.13:1 cr - (1) - STC908S
9.35:1 cr - (1) - STC909S
Single Pistons;
Supplied with rings & gudgeon pins.
4.2 Litre - 9.94:1 cr - (8) - STC1191S
4.0 Litre
Offset gudgeon type - standard size only.
8.13:1 cr - (8) - ERR5555
9.35:1 cr - (8) - ERR5553
4.6 Litre
Offset gudgeon type - standard size only.
8.13:1 cr - (8) - ERR5556
9.35:1 cr - (8) - ERR5554
Pistons Rings;
Supplied as engine set.
3.5 Litre
8.13, 8.25, 9.35 & 9.75:1 cr
Standard Size - (1) - RB7358
Oversize +0.020" - (1) - RB7358-020
Oversize +0.040" - (1) - RB7358-040
10.5:1 cr
Standard Size - (1) - RB7421
Oversize +0.020" - (1) - RB7421-020
Oversize +0.040" - (1) - RB7421-040
3.9 & 4.2 Litre
High & low cr
Standard Size - (1) - RB7538
Oversize +0.020" - (1) - RB7538-020P
4.0 & 4.6 Litre
High & low cr
Standard Size - (1) - STC1427
Con Rod Assembly;
3.5, 3.9 & 4.2
Single
New - (8) - 602082
Reconditioned - (8) - 602082R
Engine Set (new) - (1) - 602082K
4.0 Litre - new - (8) - ERR4837
4.6 Litre - new - (8) - ERR5145
Bolt - con rod;
3.5, 3.9 & 4.2 - (16) - 602609
4.0 & 4.6 - (16) - ERR1772
Nut - con rod - (16) - 602061A
Not 4.0 & 4.6 litre engines.
Big End Bolt/Nut Kit - (1) - RB7500
Engine set of high performance ARP forged chrome moly' steel bolts & nuts. Not suitable for 4.0 & 4.6 litre engines.
Bearing Set - big end;
All engines except New Range Rover.
Standard Size - (1) - RTC2117
Oversize +0.010" - (1) - RTC2117-010
Oversize +0.020" - (1) - RTC2117-020
Oversize +0.030" - (1) - RTC2117-030
Oversize +0.040" - (1) - RTC2117-040
Oversize +0.060" - (1) - RTC2117-060
Bearing Set - big end (4.0 & 4.6) - (1) - ERR1773
Standard size.
Heavy Duty Bearing Set - big end;
All engines except New Range Rover.
Standard Size - (1) - RB7451
Oversize +0.010" - (1) - RB7451-010
Oversize +0.020" - (1) - RB7451-020
Oversize +0.030" - (1) - RB7451-030
Oil Pump & Timing Cover
There are two types of oil pump for the V8 engine fitted to the Discovery. The first was fitted from 1989 to VIN LA (approx. March 1994) and is a camshaft-driven oil pump, incorporated into the lower right hand of the timing cover, with a removable housing for the relief valve and oil filter.
From VIN MA (April 1994), the oil pump was changed to a crank-driven type, incorporated into a redesigned timing cover without the need for a separate relief valve housing. The two types are not easily interchangeable, as the later design requires a longer crankshaft nose to accommodate the oil pump gears.
Oil Pump Cover (body) - (1) - BHM1554
To VIN LA081990 (1994). See photo.
Oil Pump Cover/Remote Take-Off - (1) - RO1105
Very low profile oil pump cover & relief valve housing for maximum clearance. Use with remote oil filter mounting kit.
Remote Oil Filter Mounting Kit - (1) - RB7116
Allows mounting of oil filter away from engine. Kit includes filter housing, hoses & mountings.
Bolt - pump mounting;
7/8" - (3) - 602910
1 1/4" - (2) - 602912
1 9/16" - (1) - 602913
Oil Pump Repair Kit - (1) - RTC2044A
All models with separate oil pump.
Includes pressure relief valve & spring.
Uprated Pressure Relief Valve Spring - (1) - RB7457
For separate oil pump models. Increases oil pressure by approx. 10 psi.
Oil Pump Shaft & Drive Gear - (1) - ERC1351A
To VIN LA081990 (1994).
Idler Gear - oil pump - (1) - 614037
To VIN LA081990 (1994).
Gasket - oil pump - (1) - 90602072A
To VIN LA081990 (1994).
Blanking Plug - (1) - 151203
Pressure switch outlet.
Washer - (1) - STC4104
For blanking plug.
Oil Pressure Switch - (1) - AMR2092
All models.
Washer - (1) - 243967
For pressure switch.
Oil Pressure Gauge Kit - (1) - RX1351OIL
Aftermarket capillary type. Includes gauge & fittings.
Oil & Water Pressure Gauge Kit - (1) - RX1351OIL-WATER
Aftermarket capillary type. Includes oil & water gauge & fittings.
Bracket - oil pressure gauge - (1) - RB7050
Oil Filter - (1) - ERR3340
If high oil temperatures are a problem, for example when towing, the V8 engine will benefit from the fitting of an oil cooler. We recommend fitting a thermostat at the same time.
Note: An oil cooler was incorporated into the coolant radiator with the introduction of the 3.9 litre engine.
Oil Cooler Kit - (1) - RA1089
All 3.5 litre engines.
Thermostat - oil cooler - (1) - RS1456
Oil Cooler Take-Off - 3.9 litre engines;
Manual Gearbox - (1) - ERC8501
Automatic Gearbox - (1) - ERR2490
Adaptor - oil filter - (1) - ERC2226
'O' Ring - (1) - ERR852
There are various types of cylinder heads available for the Rover V8, with only subtle differences between them. Not all are suitable for every application, so care must be taken when ordering replacement heads for your vehicle. Please note that reconditioned cylinder heads are only sold on an exchange basis (in pairs) and that we require similar type cylinder heads in return, otherwise a surcharge will apply.
Early Cylinder Heads
Early cylinder heads - as fitted to Rover P5B, P6, MGB V8 and early Range Rover - are fitted with small (38mm inlet, 33mm exhaust) valves and may not be suitable for use with unleaded fuel. These heads can be identified most easily by removing one of the spark plugs and measuring the length of the threaded section of the plug. If it measures 12.5mm, the cylinder head is an early type and is not suitable for exchange. If it measures 19mm, the cylinder head is post-1976 (SD1 or later).
Later Cylinder Heads
Identify later cylinder heads as follows:
1. Count the rows of cylinder head bolts. All cylinder heads have a row of head bolts inside the rocker covers; they also have a second row of 5 head bolts just below the spark plugs. Finally, cylinder heads up to around 1994 have a third row of 4 bolts just below the second row. 3.9, 4.2, 4.0 & 4.6 litre engines after this period have a total of two rows of head bolts.
2. Look at the ends of the cylinder heads, as fitted to the engine. There are tapped holes in the ends of each cylinder head, to which the ancillary component brackets are bolted. The number of holes determines which type you have, as follows:
3/3 bolt (3 bolt holes in each head)
3/4 bolt (3 bolt holes in one head, 4 in the other)
4/4 bolt (4 bolt holes in each head)
It is important that the cylinder heads you order are similar to the ones you have removed, otherwise your ancillary components may not fit.
Standard Cylinder Heads (pair)
Reconditioned. Exchange - all engines.
Complete with new valves, valve guides, springs & valve stem oil seals. Less rocker gear.
Reconditioned cylinder heads are sold only in matching pairs, with the actual combustion chamber size marked on them.
With 3 Rows of Head Bolts
Pre-95 applications. 34-36cc combustion chambers.
3/3 End Bolt Type - (pr) - RB7095RA
3/4 End Bolt Type - (pr) -