12nv and 12st cranks

[Gareth_C]

Hi guys apart from the Pistons are the cranks the same In the 1200 engines above.
Cheers Gareth

[Gareth_C]

sorry just re read my title I ment the c12nz engine a the 12st engine

[Peredur]

You can check on opel-infos but I think the ST and NV are the same and the NZ is different

[jimbob-mcgrew]

early carburettor 12ST : is 62.9 mm crank throw, with 77.8 mm pistons -1196 cc.

later single point injection 12NZ : is 73.4 mm crank throw, with 72 mm pistons - 1195 cc.

not 100% sure about the NV carb, but i think its the same as the earlier ST.