I was wondering if anyone has a Pontiac 455 with pontiac 48 heads on the engine.

I am planning on putting #48 heads on my 1974 455 engine but I would like to know what size dish pistons should I use, what cam, etc. I also would want the engine to run on pump gas.

thanks.

 

www.classicalpontiac.com

 

http://www.transamcountry.com/forum/

theres a link to a great group of guys the can answer anything about trans am's etc

 

I have a 455 w 48 heads, it doesnt like pump gas, comp is about 12:1

 

Ditto. Find yourself some 1971 400 #96 heads. Will give you a perfect 9.2:1 compression on a 455. Also, check out the following link:

http://forums.performanceyears.com/forums/


Great information and lots of tech discussions.

 

http://forums.performanceyears.com/forums/index.php


good luck with the build

whats the Poncho going in?

 

My 403 wears #5 heads and comp ratio is on the high side of 10:5.1 --- But damn it woke her up => will get u some vids up soon