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1974bmw2002

can you substitude a E12 cylinder head with a E21??

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Guest Anonymous

Yes you can. The car I am driving now has that set-up, done by the previous owner.I don't know much about the mechanics of the switch. The car runs well, fairly strong but not as strong as an Eric Kerman(sp?) motor I had in a previous car. It had a small solex carb when I bought it which I swapped to a 38/38 with 40 idle jets. It also has an electric feul pump.

Chris J.

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According to the Macartney book:

Not if you have raised grand piano pistons that came with the E12 head. If you have flat tops, you'll be OK. There was also a special grand piano head that was made for the E21 head, the "piano" portion was oriented differently.

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And to make things more confusing,

the 'short' E12 piano will miss the E21 head with the thick gasket,

but the quench area's all goofy... and the c/r's not great. Found a core

motor like that once...

t

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