Cylinder block and crankshaft - BN4, BN6, BN7, BT7, BJ7 and BJ8
Piston set
made from aluminium forgings. Specifications: flat top pistons with 83.5 mm
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Product number: 316617
BN7, BT7, BJ7 and BJ8 (1959-68)
Piston set
made from aluminium forgings. Specifications: flat top pistons with 84.0 mm diameter
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Product number: 316616
BN7, BT7, BJ7 and BJ8 (1959-68)
Piston set
made from aluminium forgings. Specifications: flat top pistons with 84.5 mm diameter
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Product number: 316615
BN7, BT7, BJ7 and BJ8 (1959-68)
Piston set
made from aluminium forgings. Specifications: flat top pistons with 85.0 mm diameter
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Product number: 316614
BN7, BT7, BJ7 and BJ8 (1959-68)
Crankshaft
new item made from EN40B steel, nitride hardened version with knife edge webs for throughout rev. range and ready ground to suit our rear oil seal
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Product number: 13068
BN4 to BJ8 (1956-68)
Con rods
forged steel 'H' beam type, complete with bolts. Supplied in sets of 6 for use with steel crankshaft 13068
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Product number: 14487
BN4 to BJ8 (1956-68)
Oil seal conversion kit
crankshaft, rear
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Product number: 206471
BN4 to BJ8 (1956-68)
Oil seal
for crankshaft conversion - separately
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Product number: 315241
Flywheel
lightened aluminium type with ring gear assembly.
Characteristic: 8-bolt fixing for steel crankshaft, also suitable for the original 4-bolt cranks
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Product number: 499774
BN4 to BJ8 (1956-68)
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)
Flywheel
without starter ring gear - exchange Lightened version to suit the BJ8 clutch cover 1743 with 9.5" diameter
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Product number: 297135
BN4 to BJ7 (1956-63)
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)
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
Pulley
competition variant without damper
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Product number: 328942
Camshaft sprocket
adjustable cam timing type. Fits to all cars with duplex timing chain
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Product number: 316621
BN1 to BJ8 (1953-68)
Camshaft sprocket
non-adjustable cam timing type. Fits to all cars with duplex timing chain
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Product number: 316620
BN1 to BJ8 (1953-68)
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)
Timing chain tensioner
uprated hydraulic variant
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Product number: 359113
BN4 to BJ8 (1956-68)
Timing cover
exchange. This variant has also an removable inspection cover to change the cam timing
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Product number: 512059
BN4, BN6, BN7, BT7, BJ7 and BJ8 (1956-68)
Oil sump
aluminium
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Product number: 215131
BN4 to BJ8 (1956-68)