General Specifications

General Specification

Type
4.2L, 90° "V", supercharged, petrol engine, twin overhead camshaft per cylinder head, 4 valves per cylinder

Cylinder Arrangement
V8, numbers 1 and 5 cylinders at front of engine when engine is viewed from rear

Cylinder Numbering
Number 1 cylinder-right hand bank: Number 5 cylinder-left bank

Bore-Nominal 86.0 mm (3.386 in.)
Stroke 90.3 mm (3.555 in.)
Capacity 4196 cubic centimeters (256 cubic inches)
Firing Order 1-5-4-2-6-3-7-8
Compression Ratio 9.1:1
Direction of Rotation Anti-clockwise viewed from rear of engine

Maximum Power
NAS 400 bhp (298 kW) @ 5750 rpm

Maximum Torque
NAS 420 ft. lbs. (569 Nm) @ 3500 rpm

Dimensions:
Length 720 Mm (28.3 in.)
Width 720 mm (28.3 in.)
Height 785 mm (30.9 in.)

Engine Oil Pressure*
At Idle 1.0 bar (100 kPa / 15 psi)
At 3500 rpm 3.0 bar (300 kPa / 44 psi)

Valve Clearances**
Inlet 0.18 to 0.22 mm (0.007 to 0.008 in.)
Exhaust 0.23 to 0.27 mm (0.009 to 0.010 in.)

Cylinder Head
Maximum Permitted Warp 0.125 mm (0.005 in.)

*Note: Prior to checking the engine oil pressure, a road test of 6 miles (10 kilometers) must be carried out. Do not attempt to attain normal engine operating temperature by allowing the engine to idle.

**Note: There are 50 different thicknesses of graded tappet available from 2.950 to 3.685 mm (0.116 to 0.145 in.) rising in increments of 0.015 mm (0.005 in.)