These are the new 4v heads that come out recently.......look niceDanoh1 wrote: ↑Sat Oct 09, 2021 10:53 am Wow. Just finished reading all 19 pages. Lots of info.
I hope the OP found success with his build. Stone stock Cleveland heads actually work pretty well.
I run stone stock, unported, un-touched 1970 351C 4V CC heads on a 12:1 “old school” Boss 302. 4 inch bore. 3 inch stroke. Holman Moody dual plane high rise intake. Solid flat tappet cam, just under .600 lift. BG prepped Holley 750. Made 430 HP on engine dyno . Ran for almost 18 years with a few freshen ups along the way. Vintage Trans Am racecar. I use the MPG intake plates.
The engine is finally getting new .020 pistons and all new everything else. Heads still un ported. New valve guides going in. Changing the cam up just a little. Expect 450 or so this time around. But probably won’t be able to dyno it.
https://scontent.fmel4-1.fna.fbcdn.net/ ... e=6188E6A0