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Home > FAQ / Knowledge > A series Crankshaft Part Numbers

Tom Fenton
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Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner

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Rotherham South Yorkshire

22A62 850cc - Early type with oil feed for primary gear, 1.375" dia. tail
22A63 850cc - Early type with oil feed for primary gear, 1.375" dia. tail
22A298850cc - Early type thin-nose crank, 1.375" dia. tail
12A670 850cc - Later type with 1.5" dia. tail
12A298 997cc - Original Cooper crank
12A375 997cc - Cooper crank with oil feed hole for primary gear
12A595 998cc - Early EN16T spec
12A1451 998cc - Later, pre-A+ EN16T spec
BHM1436 998cc - A+ spec, 1985 onwards (12A1451 forging)
12G82 1100cc - Standard across the board transverse A-series EN16T spec
AEG330 970cc - EN40B forged, non-cross drilled
AEG171 1071cc - EN40B forged, non-cross drilled
AEG315 1275cc - Cooper S, EN40B forging, Nitrided, 1.625" dia. big ends, non-cross drilled
AEG316 1275cc - Cooper S, EN40B forging, Nitrided, 1.625" dia. big ends, non-cross drilled
AEG479 1275cc - Cooper S, EN40B forging, Nitrided, 1.625" dia. big ends, cross drilled
AEG480 1275cc - Cooper S, EN40B forging, Nitrided, 1.625" dia. big ends, cross drilled
AEG623 1275cc - Cooper S, EN16T forging, Tuftrided, 1.625" dia. big ends
12G1287 1275cc - Non-S, EN16T with 1.625" dia. big ends
12G1288 1275cc - Non-S, EN16T with 1.625" dia. big ends
12G1505 1275cc - Non-S, EN16T with 1.75" dia. big ends
12G1683 1275cc - 12G1505 forging, non-S, EN16T with 1.75" dia. big ends, Tuftrided
CAM6232* 1275cc - Rolled-fillet radius on bearing journals, A+ with 1.75" dia. big ends

The turbo is CAM 6581


Taken from a reply to a post by AlexF, posted here for reference. TF

Edited by Tom Fenton on 25th Apr, 2006.


On 29th Nov, 2016 madmk1 said:


On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else


Like fuel 😂😂

Home > FAQ / Knowledge > A series Crankshaft Part Numbers
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