ENGINE - V8

GENERAL SPECIFICATION DATA

1

INFORMATION

ENGINE - V8

Type

3.9 litre V8

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

Number of cylinders

Eight, two banks of four

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

Bore

94.00 mm

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

Stroke

71.12 mm

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

Capacity

3950 cm

3

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

Valve operation

Overhead by push-rod

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

Compression ratio

8.13:1 or 9.35:1

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

Valve operation

Overhead by push-rod

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

Maximum power:

- 8.13:1

127kW at 4550 rev/min

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

- 9.35:1

134kW at 4750 rev/min

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

Type

4.2 litre V8

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

Number of cylinders

Eight, two banks of four

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

Bore

94.00 mm

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

Stroke

77.00 mm

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

Capacity

4275 cm

3

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

Valve operation

Overhead by push-rod

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

Compression ratio

8.94:1

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

Valve operation

Overhead by push-rod

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

Maximum power

149kW at 4850 rev/min

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

Crankshaft
Main journal diameter

58.409-58.422 mm

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

Minimum regrind diameter

57.393-57.406 mm

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

Crankpin journal diameter

50.800-50.812 mm

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

Minimum regrind diameter

49.784-49.797 mm

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

Crankshaft end thrust

Taken on thrust washers of centre main bearing

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

Crankshaft end float

0.10-0.20 mm

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

Main bearings
Number and type

5, Vandervell shells

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

Material

Lead-indium

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

Diametrical clearance

0.010-0.048 mm

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

Undersize bearing shells

0.254 mm, 0.508 mm

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

Connecting rods
Type

Horizontally split big-end, plain small-end

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

Length between centres

143.81-143.71 mm

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

Big-end bearings
Type and material

Vandervell VP lead-indium

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

Diametrical clearance

0.015-0.055 mm

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

End-float crankpin

0.15-0.36mm

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

Undersize bearing shells

0.254 mm, 0.508 mm

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

Piston pins
Length

72.67-72.79 mm

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

Diameter

22.215-22.220 mm

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

Fit-in connecting rod

Press fit

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

Clearance in piston

0.002-0.007 mm

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