Sep 20th, 00, 04:24 PM
I am building a 383 and have a set of "882" casting heads, they are 2.02 intake size. They are 76cc and I need that size to keep my compression below 10:1. I am wondering if these heads are worth sinking some money into? I am having a tough time finding a 76cc aluminum performance head as an alternative. 76cc puts me at 9.6:1 with Keith Black 100 pistons. Help!!!
Sep 20th, 00, 06:19 PM
Don't worry about your compresion with aluminum heads,10:1-10.5:1 is usualy fine.As a matter of fact they recomend higher compresion with aluminum heads.Aluminum heads get rid of the heat quicker alowing you to run higher compresion ratios without detonation.
[This message has been edited by mutant 68 (edited 09-20-2000).]
Sep 20th, 00, 07:25 PM
man them 882's are worthless. find something else because they are just an old smogger head. don't drop any money into them.
Sep 21st, 00, 02:05 PM
Worthless .... I will save them for a rainy day non-performance motor then. A buddy of mine is pushing me towards the Vortec heads. I will have to check to see if they are 76cc. They seem to be the best bang for the buck.
Mark W. Winning
Sep 21st, 00, 02:41 PM
Plenty of companies make 72/76 cc aluminum heads. I was just poking through Summit and Dart and some others make those type.
1992 Firebird 355/Six Speed
1991 RS 350 / 700-R4
1987 Toyota Pickup 383 / 500 + HP 10.963 @ 119.95 Slicks / 11.997 @ 114.23 Radials
Sep 21st, 00, 03:06 PM
they are 64cc, but in popular hotrodding they say most of them are 61cc. try looking under airflowresearch.com i think they'll have what you are looking for.
Sep 21st, 00, 08:23 PM
What is your reason for wanting below 10:1 with an aluminum head ?
[This message has been edited by mutant 68 (edited 09-21-2000).]
Sep 22nd, 00, 03:18 PM
mutant, I want the benefit of lightweight aluminum and its heat dissipation properties. And as far as 10:1, I want to be able to run pump gas. I always thought that 10.5:1 was the borderline for pump gas. I have found World Products S/R Torquer heads at 76cc but they are cast iron, the search for aluminum continues........
Sep 22nd, 00, 03:31 PM
I've built both 350's and 383's with Edelbrock Performer RPM aluminum heads and KB pistons at between 10.1 and 10.4:1 (measured), and have never had a problem. If you can afford it, don't waste your time and money on iron heads.
'69 Z28 Fathom Green
Sep 22nd, 00, 03:42 PM
71camaross, I checked out AFR and they look pretty good. They have 68cc or 74cc in a street aluminum head which will work out fine. I hope they have a booth at SEMA so I can talk to them. Thank you all for your input. http://www.camaros.net/forum/smile.gif