Aftermarket Heads

[wwhite72]

C4's and 8.8's are a lot different now than when Ford put them out originally. But...a locker with slicks and 550hp can do a lot of impressive damage as you said above.

 

[Mesozoic]

I just picked up a set of RHS 215 heads bare for my wheezer and having them built up at my favorite machine shop with some stage 1 port work. They're supposed to flow over 300 cfm as cast at 0.500" lift. Also supposed to be extremely high quality from the New Zealand foundry.

For the Cleveland I would run stock 4V heads or the CHI or Kaase units.

You're gonna need a bit of cam to make those horsepower numbers and a fair bit of compression too. I think 10.5:1 or more and some forged internals might be on the radar if that's the truly desired power level.