E30 325i Larger throw crankshaft

[grahambult]

I read an article a couple of years ago of an M3 E36 crankshaft being fitted to a std E30 325 block. Apart from machining of the front oil seal journal on the E36 crankshaft to fit the std E30 front oil seal & fitting 320 con-rods that was all that was needed to increase the engine to 3200cc. Has any one done this & is this all that is needed. Graham

[Kedge]

Never heard of that before! Only E36 crankshaft i've heard being used is one from the 328i, and then i think it has to be the single vanos version.

Someone will be along with more detailed info shortly i'm sure...

[e301988325i]

http://www.e30zone.net/e30zonewiki/inde ... ding_a_2.8

[eta]

S50 crankshaft aparantly won't fit but the M54/S54 89.6mm crank will but to get 3.1 litres you need to increase the bore size to 86mm. So alot of work.