Trying to match crank casting numbers with Cooper S model, if anyone can help ?
Presume AEG623 is Mk 3 S. and AEG315 is a 64 MK1......
Unless you were a stickler for factory originality, is there any reason why you would choose a non-cross drilled crank over a cross drilled crank?
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.