This is a discussion on heads within the Classic Muscle forums, part of the Vehicle Specific category; Originally Posted by pajeff02 The OP didn't appear to know their history, so there is no telling when they were ...
02-11-2010, 09:05 AM #21
Last edited by Smittro; 02-11-2010 at 09:07 AM.
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02-12-2010, 01:37 PM #22
- Join Date
- Feb 2007
- San Diego, CA
2002 Z28 A4 NBM
- Sadly now demodded :(
My guess is that they are 1.94I/1.50E as they made (literally) millions of them. 461 is a good casting number for a mid-60's SBC. They are ~64cc combustion chamber (about 10:1 on a 4" bore with flat tops) with about 150cc or so flow on the intake side. I used quite a few of them over the years.
Factoid: They made a 461X casting that was 2.02/1.60 with screw in studs and guide plates and a 160cc intake runner. Find these and they are gold to a restorer as they only came on higher HP (365hp?) 327 Vettes.
To be honest I'd look for a later model with the bolt holes for your accessories.
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