V8 Models
Engine Technical Data


Information taken from Rover Operation Manual.

Type V8
Capacity 3528 cm3 (215 in3)
Compression ratio Rnewable twin elements
Engines numbered in the range commencing 425, 427and 451, 453, 455 with suffix A, B or C 10.5:1 (8.5:1 to special order)
Engines numbered in the range commencing 451, 453 and 455 from suffix from suffix D onwards 9.25:1
Firing order 1-8-4-3-6-5-7-2
Cylinder numbering system, front to rear  
Left bank 1-3-5-7
Right bank 2-4-6-8
Compression pressure (minimum)  
10.5:1 compression ratio models 12.5 kgf2 (175 lbf/in2)
9.25:1 compression ratio models 9.5 kgf2 (135 lbf/in2)
8.5:1 compression ratio models 10.9 kgf2 (155 lbf/in2)
Idling speeds  
10.5:1 compression ratio models 600 to 650 rpm
9.25:1 compression ratio models 700 to 750 rpm
8.5:1 compression ratio models 600 to 650 rpm
Air conditioned models 700 to 750 rpm with compressor disengaged
Fast idle speed 1100 ro 1200 rpm
Ignition timing, static and dynamic  
At 600 rpm
Compression Timing
10.5:1 6 degrees BTDC for use with fuel of 100 minimum research octane number. TDC for use with fuel of 96 to 99 minimum reasearch octance number
9.25:1 6 degrees BTDC for use with fuel of 96 minimum research octane number
8.5:1 6 degrees BTDC for use with fuel of 90 minimum research octane number
  7/16 (11 mm) in shut-off
Timing marks On crankshaft pulley
Valve Clearance Not adjustable
Distributor
Type Lucas 35 D8
Rotation of rotor Clockwise
Dwell angle 26 to 28 degrees
Contact breaker gap 0.36 mm to 0.40 mm (0.014 in to 0.016 in)
Condensor capacity 0.18 to 0.25 microfarad
Serial number 1569
Early models with Lucas No. 41176 or 4278 stamped on distributor body  
Ignition timing
Crankshaft Angle (6 degrees BTDC) Engine rev/min
30-34 degrees 4800
26- 30 degrees 3800
18-22 degrees 1800
14-18 degrees 1400
8-12 degrees 1000
6 degrees Below 600
Vaccum advance  
Starts 101 mm (4 in) Hg
finishes 508 mm (20 in) Hg
Models with Lucas No. 41317 stamped on distributor body  
Ignition timing
Crankshaft Angle (6 degrees BTDC) Crankshaft Angle (TDC) Engine rev/min
30-34 degrees 24-28 degrees 4800
26-30 degrees 20-24 degrees 3800
20-24 degree 14-18 degrees 2400
16-20 degrees 10-14 degrees 1800
9-12 degrees 3-3 degrees 1200
6-9 degrees 0-3 degrees 900
6 degrees 0 degrees Below 700
Vaccum advance
Starts 101 mm (4 in) Hg
finishes 508 mm (20 in) Hg
Models with Lucas No. 41392 or 41393 stamped on distributor body
Ignition timing
Crankshaft Angle (6 degrees BTDC) Engine rev/min
25-29 degrees 4400
20-24 degrees 2600
15-20 degrees 1800
8-12 degrees 1200
6 degrees Below 600
Vaccum advance  
Starts 101 mm (4 in) Hg (41392 stamp), 101 mm (4 in) Hg (41393 stamp)
finishes 381 mm (15 in) Hg (41392 stamp), 508 mm (20 in) Hg (41393 stamp)
Models with Lucas No. 41394 stamped on distributor body  
Ignition timing
Crankshaft Angle (TDC) Engine rev/min
26-30 degrees 4800
22-26 degrees 4000
15-19 degrees 2400
9-14 degrees 1800
2-6 degrees 12000
0 degrees Below 700
Vaccum advance
Starts 101 mm (4 in) Hg
finishes 508 mm (15 in) Hg
Models with Lucas No. 41573 stamped on distributor body  
Ignition timing
Crankshaft Angle (6 degrees BTDC) Engine rev/min
26-30 degrees 4200
23-27 degrees 3500
18-22 degrees 2600
12-16 degrees 1500
8-12 degrees 1200
6-7 degrees 800
6 degrees Below 600
Vaccum advance
Starts 90 mm (3.50 in) Hg
finishes 381 mm (15 in) Hg
Spark plugs
Make Champion
Type L92Y
Gap 0.60 mm (0.025 in)
Ignition coil
Make Lucas 16 C 6 with ballast resistor
Primary resistance at 20 degrees Celcius (68 degrees Farenheit) 1.2 to 1.4 ohms
Consumption - ignition on at 2000 rpm 1 amp
Carburettors
Engines numbered in the range commencing 425 and 427
Make SU HS6
Bore 44.45 mm (1.75 in)
Needle - Early 3500 KO
Needle - new look 3500 BAK
Jet size 2.54 mm (0.10 in)
Float level 3.0-4.5 mm (0.062-0.187 in)
Engines numbered in the range commencing 451, 453 and 455 with suffix A, B or C  
Make SU HIF6
Bore 44.45 mm (1.75 in)
Needle - Early 3500 BBG
Starter valve spindle 1 mm orifice
Piston spring colour Yellow
Float level 1.0 mm + 0.5mm (0.040 in + 0.020 in)
Damper oil SAE 20
Engines numbered in the range commencing 451, 453 and 455 from suffix D onward
Make SU HIF6
Bore 44.45 mm (1.75 in)
Needle BBV
Starter valve spindle 1 mm orifice
Piston spring colour Yellow
Float level 1.0 mm + 0.5mm (0.040 in + 0.020 in)
Damper oil SAE 20