TPI cyl. head #'s (was Re: )

[Mark Romans]

I posted this question on the diy efi site and the answer is that the stock
cast iron tpi heads (350) are 64cc and the aluminum is 58cc.
Mark
-----Original Message-----
From: Andrew K. Mattei <amattei at mindspring.com>
To: gmecm at esl.eng.ohio-state.edu <gmecm at esl.eng.ohio-state.edu>
Date: Tuesday, June 22, 1999 4:16 AM
Subject: Re: TPI cyl. head #'s (was Re: )


>>3 questions:
>>What are the casting #'s for the iron 350 heads?
>>Are they used exclusively on F body?
>>What performance books/ references cover the later heads?
>
>>
>>Bruce Wilcox (EUS) wrote:
>>> was close to 55 cc. It is true that the 5.7L engine combustion chamber
>>> volume was 58 cc.
>>>
>
>
>Ya'll have now made me curious... I can't find any web references to the
TPI
>cylinder head combustion chamber volumes (nor the casting number), and my
>heads are at the machinist's place <G>. I have in front of me a GMPP
>catalog, that lists the casting number for an iron head as 14011083, 64cc
>chamber, 1.94"/1.50" valve sizes. *If my memory serves me correctly*,
that's
>the head that was on my 1989 TPI motor (out of a Camaro).
>
>Reason I'm curious... At the last minute, instead of machining my stock
>heads, I opted to purchase some low mileage World Products S/R Torquer
>heads... And those have a 76cc volume. If indeed the iron heads have a 58cc
>size (which I somehow doubt...), then my CR would be way too low... Looking
>down the catalog here, I see that the Corvette Aluminum TPI head had a
58cc,
>1.94/1.50, casting number 10088113...
>
>The GMPP catalog lists the iron head application as a "350 284 HP service
>head"... Which means it may or may not have been used on other cars. IIRC,
>the iron head ran with a 9.3:1 CR...
>
>Abbreviations-R-Us,
>
>-Andrew (if you build it, it will run... <G>)
>
>