V8 Models
Engine Specifications

Information taken from Rover Repair Operation manual for 3500 and 3500S models.

Engine
Type V8
Number of cylinders Eight - two banks of four
Bore 88.90 mm (3.500 in)
Stroke 71.12 mm (2.800 in)
Capacity 3528 cm3 (215 in3)
Valve operation Overhead by pushrod
Crankshaft
Main journal diameter 58.400 to 58.416 mm - 2.2992 to 2.2997 in
Minimum regrind diameter 57.384 to 57.396 mm (2.2592 to 2.2597 in)
Crankpin journal diameter 50.800 to 50.512 mm (2.0000 to 2.0005 in)
Minimum regrind diameter 49.784 to 49797 mm (1.9600 to 1.9605 in)
Crankshaft end thrust Taken on thrust faces of centre main bearing
Crankshaft end-float 0.10 to 0.20 mm (0.004 to 0.008 in)
Main bearings
Number and type 5 Vandervell shells
Material Lead indium
Diametrical clearance 0.023 to 0.065 mm (0.0009 to 0.0025 in)
Undersizes
0.254 mm 0.508 mm 0.762 mm 1.016 mm
0.010 in 0.020 in 0.030 in 0.040 in
Connecting rods
Type Horizontally split, big end, plain small end
Length between centres 143.81 to 143.71 mm (5.662 to 5.658 in)
Big end bearings
Type and material Vandervell CP lead indium
Diametrical clearance 0.015 to 0.055 mm (0.0006 to 0.0022 in)
End-float on crankpin 0.15 to 0.37 mm (0.006 to 0.014 in)
Undersizes
0.254 mm 0.508 mm 0.762 mm 1.016 mm
0.010 in 0.020 in 0.030 in 0.040 in
Gudgeon pins
Length 72.67 to 72.79 mm (2.861 to 2.866 in)
Diameter 22.215 to 22.22 mm (0.8746 to 0.8749 in)
Fit-in con rod Press fit
Clearance in piston 0.002 to 0.007 mm (0.0001 to 0.0003 in)
Pistons - early type
Clearance in bore measurd at top of skit at right angles to gudgeon pin 0.018 to 0.033 mm (0.007 to 0.0013 in)
Pistons - latest type
Clearance in bore measurd at top of skit at right angles to gudgeon pin 0.018 to 0.033 mm (0.007 to 0.0013 in)
Piston rings
Compression 2
Number one compression ring Chrome faced and marked "T" or "TOP"
Number two compression ring Stepped "L" shape and marked "T" or "TOP"
Gap in bore 0.44 to 0.57 mm (0.017 to 0.022 in)
Clearance in groove 0.08 to 0.13 mm (0.003 to 0.005 in)
Oil control 1
Type Perfect circle, type 98
Gap in bore 0.38 to 1.40 mm (0.015 to 0.055 in)
Camshaft
Location Central
Bearings Non-serviceable
Timing chain 9.52 mm (0.375 in) pitch x 54 pitches
Valves - Inlet
Overall length 116.58 to 117.34 mm (4.590 to 4.620 in)
Head diameter 37.97 to 38.22 mm (1.495 to 1.505 in)
Angle of face 45 degrees
Stem diameter 8.640 to 8.666 mm (0.3402 to 0.3412 in) at the head and increasing to 8.653 to 8.679 mm (0.3407 to 0.3417 in)
Stem to guide clearance - top 0.02 to 0.07 mm (0.001 to 0.003 in)
Stem to guide clearance - bottom 0.013 to 0.063 mm (0.0005 to 0.0025 in)
Valves - Exhaust
Overall length 116.58 to 117.34 mm (4.590 to 4.620 in)
Head diameter 332215 to 33.466 mm (1.3075 to 1.3175 in)
Angle of face 45 degrees
Stem diameter 8.628 to 8.654 mm (0.3397 to 0.3047 in) at the head and increasing to 8.640 to 8.666 mm (0.3402 to 0.3412 in)
Stem to guide clearance - top 0.038 to 0.888 mm (0.0015 to 0.0035 in)
Stem to guide clearance - bottom 0.05 to 0.10 mm (0.002 to 0.004 in)
Valves
Valve lift (both valves) 9.9 mm (0.39 in)
Valve spring length - inner 41.4 mm (1.63 in) under load of 9.75 to 12.02 kg (21.5 to 26.5 lb)
Valve spring length - outer 40.6 mm (1.6 in) under load of 17.69 to 20.41 kg (39 to 45 lb)
Valve timing
Inlet opens 30 degrees BTDC
Inlet closes 75 degrees ABDC
Inlet duration 285 degrees
Inlet peak 112.5 degrees ATDC
Exhaust opens 68 degrees BBDC
Exhaust closes 37 degrees ATDC
Exhaust duration 285 degrees
Exhaust peak 105.5 degrees BTDC