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E30 325i Larger throw crankshaft
Posted: Sun Mar 27, 2011 4:14 pm
by 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
Re: E30 325i Larger throw crankshaft
Posted: Sun Mar 27, 2011 4:23 pm
by 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...
Re: E30 325i Larger throw crankshaft
Posted: Sun Mar 27, 2011 5:35 pm
by e301988325i
Re: E30 325i Larger throw crankshaft
Posted: Mon Mar 28, 2011 9:12 pm
by 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.