olds 403
#1
olds 403
I have an olds 403 that is bored 0.24 over with the kb pistons. i have 72 7a heads that are already all machined with port and polish job and the biggest valves possible. Im afraid my compression will be too much. i think it will be around 11:1. I dont mind running and octane booster. I havnt had these heads flow tested yet but im hoping they will support 500 hp. Can i use theses heads or am i better off going with the 455 c heads?
#3
I have an olds 403 that is bored 0.24 over with the kb pistons. i have 72 7a heads that are already all machined with port and polish job and the biggest valves possible. Im afraid my compression will be too much. i think it will be around 11:1. I dont mind running and octane booster. I havnt had these heads flow tested yet but im hoping they will support 500 hp. Can i use theses heads or am i better off going with the 455 c heads?
Thread
Thread Starter
Forum
Replies
Last Post
88hurstolds
Parts For Sale
4
January 20th, 2020 11:39 AM