924Board.org

[16 w/porsche931]

i was wondering if the 924 n/a head would swap onto a 931. the only differences that i have been able to find are the stainless steal valves and the spark plugs are on the other side. so you could tap new plug holes on other side. if it fits the only issue i see is is it a problem to run n/a valve that are not stainless. Porsche must have had a reason. (i need a 931 head) thanks nate

[cs]

the na head lacks the combustion chamber of the turbo head, which would give you high compression. also, the na head doesn't flow near as well as the turbo head. the intake manifold has a slightly different bolt pattern. but as far as bolting up, that it does. though most people who swap heads put the turbo head on the na.

[16 w/porsche931]

thanks for the info. i finnaly found myself a head so i don't have to think about any other options. thanks a bunch, nate