EFI Head Volume

Marc Piccioni mpiccioni at attcanada.net
Sun Apr 4 16:26:36 GMT 1999


The head cc's should be 58.5 if the heads have not been cut. One possible 
method (depending on how much boost he wants to run) is to use Fel-Pro's 
head save gasket shim, it adds ~0.040" in thickness which roughly 
translates into ~ 0.8 -> 1.0 drop in C.R. This would save a bunch of $$$ on 
AL heads if that is what he would like to do.........

/Marc

----------
From: 	Mark Romans[SMTP:romans at pacbell.net]
Sent: 	April 4, 1999 12:45 AM
To: 	diy_efi at esl.eng.ohio-state.edu; EFI
Subject: 	EFI Head Volume

I have a friend who has an 89 Firebird 5.7 w/tpi and a Vortech and he has
the stock cast iron heads.  (No casting #) and we are trying to determine
what the stock head combustion chamber volume is.  He wants to go to
aluminum heads and drop his compression to 8.0-8.5 to one range.  Anyone
know what the stock cast iron L98 F-Body app combustion chamber CC's are?
Thanks.  Mark




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