Cylinder block and crankshaft - BN1 and BN2
Piston set
in 100M specification. 88 mm diameter, dished top and 8.5:1 compression ratio
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Product number: 328933
BN1 and BN2 (1952-56)
Piston set
in 100M specification. 88.5 mm diameter, dished top and 8.5:1 compression ratio
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Product number: 328934
BN1 and BN2 (1952-56)
Piston set
in 100M specification. 89 mm diameter, dished top and 8.5:1 compression ratio
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Product number: 328935
BN1 and BN2 (1953-56)
Piston set
made from aluminium forgings. Specifications: flat top pistons with 88 mm diameter and 10.5:1 compression ratio.
Please note: using these pistons the cylinder head and block needs skimming
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Product number: 328936
BN1 and BN2 (1952-56)
Con rods
forged steel 'H' beam type, complete with bolts. Supplied in sets of 4 for use with steel crankshaft 328938
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Product number: 328940
BN1 and BN2
Con rod bolts
for the small end - high grade 8470 chrome moly with a tensile strength of 220.000 psi ensure substantial strength and reduce stretching. Supplied in sets of 4
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Product number: 530652
BN1 and BN2 (1953-56)
Crankshaft sprocket
double row
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Product number: 204691
BN1 to BJ8 (1953-68)
Iwis Timing chain
uprated double row endless chain with 62 pitches
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Product number: 318819
BN1 to BJ8 (1953-68)
Harmonic balancer
crankshaft - complete with fan belt disc. Improved copy with 3/8” fan belt width
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Product number: 19942
BN4 to BJ8. BN1 and BN2 need in addition our narrow fan belt conversion kit part no. 321222. For BJ8 models from engine no. 29K-H10272 onwards, water pump 205370 and fan belt 205376 is need in addition
Harmonic balancer
crankshaft - Full Race type
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Product number: 513058
BN1 to BJ8 (1953-68)
Pulley
competition variant without damper
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Product number: 328942
Oil seal conversion kit
crankshaft rear
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Product number: 327924
BN1 - BN2
Oil seal
replacement seal for for our crankshaft conversion kit (part no. 327924)
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Product number: 303382
Engine plate
rear - alloy replacement with 1750 gram weight
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Product number: 491441
BN1 and BN2 (1952-56)
Flywheel
without starter ring gear. Competition version made from high quality steel to suit the 9.1/2" clutch
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Product number: 328957
BN1 to BJ8 (1952-68)
Flywheel
without starter ring gear. Full race version made from high quality steel to suit the 7.1/2" AP racing clutch
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Product number: 328958
BN4 to BJ8 (1956-68)
Ring gear
for competition and full race flywheel. Lightweight type wth 11 kg weigth and 0.375" tickness.
Please note: This ring gear must be used together with starter motor 25949
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Product number: 205672
BN1 to BJ8 (1952-68)
Oil sump
made from alloy
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Product number: 15275
BN1 and BN2 (1953-56)
Repair panel
oil sump bottom
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Product number: 548573
BN1 and BN2 (1953-56)
Stainless steel hose
oil pump - flexible pipe which eliminates any risk of stress fractures
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Product number: 324724
BN1 and BN2 (1953-56)
Baffle plate
bolt in type for aluminium oil sump
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Product number: 204693
BN1 and BN2 (1952-56)
Conversion kit
with 3 pulleys and 1 narrow fan belt. This conversion runs with the original fan
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Product number: 321222
BN1 and BN2 (1953-56)
Cam follower
modified version, approx. 10g lighter than standard
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Product number: 205802
BN1 and BN2 (1953-56)