ENGINE 4.0 V8

GENERAL SPECIFICATION DATA

3

INFORMATION

ENGINE 4.0 V8

Type

4.0 litre V8

.................................................................................

Number of cylinders

Eight, two banks of four

.........................................................

Bore

94.00 mm

.................................................................................

3.70 in

Stroke

71.12 mm

...............................................................................

2.80 in

Capacity

3950 cm

3

...........................................................................

241 cu in

Valve operation

Overhead by push-rod

................................................................

High Compression

Low Compression

Compression ratio

9.35:1

............................................................

8.2:1

Valve operation

Overhead by push-rod

................................................................

Maximum power:

9.35:1

140kW at 4750 rev/min

..............................

8.2:1

132kW at 4750 rev/min

................................

Crankshaft
Main journal diameter

63.500 - 63.487 mm

.......................................................

2.50 - 2.4995 in

Crankpin journal diameter

55.513 - 55.500 mm

................................................

2.1855 - 2.1850 in

Crankshaft end thrust/end float

Taken on thrust washers of centre main bearing

........................................

0.10 - 0.20 mm

0.004 - 0.008 in

Main bearings
Number and type

5, Vandervell shells

..............................................................

Material

Lead bronze with lead-indium overlay

............................................................................

Diametrical clearance

0.015 - 0.060 mm

.......................................................

0.0006 - 0.0024 in

Connecting rods
Type

Horizontally split big-end, plain small-end

.................................................................................

Length between centres

155.12 - 155.22 mm

...................................................

6.1071 - 6.1110 in

Big-end bearings
Type and material

Vandervell VP3 Lead bronze with lead-indium overlay

............................................................

Diametrical clearance

0.015 - 0.016 mm

.......................................................

0.0006 - 0.0024 in

Piston pins
Length

60.00 - 60.50 mm

..............................................................................

2.3622 - 2.3819 in

Diameter

23.995 - 24.000 mm

..........................................................................

0.9447 - 0.9449 in

Fit-in connecting rod

Press fit

.........................................................

Clearance in piston

0.015 - 0.006 mm

..........................................................

0.0006 - 0.0002 in

Pistons
Clearance in bore, measured at bottom
of skirt at right angles to piston pin

0.020 - 0.050 mm

...................................

0.0008 - 0.0020 in