Looking for information on 455 Rebuild to get 400HP

[scottemedzi]

I read an article years ago about a 455 rebuild using 6X heads, a cam change and I believe a piston change, that yielded almost 400 hp. Of course now that I want to do it, I can't find the article. Any help would be appreciated. This was using a 73 engine.

[jmt455]

I can't help you with that old article, but I would suggest you visit these two sites for help/advice with your 455 plans:
AMES Performance Engineering forum:
http://forums.maxperformanceinc.com/forums/index.php

Pontiac Street Performance forum:
http://psp.aquacomp.net/default.asp

There are MANY threads on both forums re: 455 builds.