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Brad Roberts · 03-09-2012, 01:17 PM

He should sell his one good 3.4 head and install 3.2 heads. Same casting, same valves, small combustion chamber. I believe it is 1 point higher on compression (and all these engines read lower than Porsche published) from what I have found..

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03-09-2012, 01:17 PM	#15
Brad Roberts Registered User Join Date: Aug 2004 Location: Alta Loma, CA Posts: 1,334	He should sell his one good 3.4 head and install 3.2 heads. Same casting, same valves, small combustion chamber. I believe it is 1 point higher on compression (and all these engines read lower than Porsche published) from what I have found.. B