heads. 302 vs 351

Topic: heads. 302 vs 351 (Read 917 times) previous topic - next topic

heads. 302 vs 351

April 27, 2008, 11:31:44 PM

now, i know the stud size is different... but.... could i use my ported and re-valved e7's on a 351?

or am i gonna have to you know... port a set of 351 heads i have layin around?

heads. 302 vs 351

Reply #1 – April 28, 2008, 07:29:00 AM

Will a 1/2" 351 headbolt fit through an E7 head? Other than that, it shouldn't matter except for usual suspects like piston/valve clearance, etc.

heads. 302 vs 351

Reply #2 – April 28, 2008, 07:43:09 AM

My '94 351 had E7's on it. You would probably have to have a machine shop enlarge the bolt holes

heads. 302 vs 351

Reply #3 – April 28, 2008, 08:35:33 AM

You can drill the holes in the heads your self. You dont need to take the heads to a shop to do them.
When i built my frist 351 i used my E7's with no probs.
I also had flattops with roller 540 lift cam in there. But i had pistons with big valve clearance :)

heads. 302 vs 351

Reply #4 – April 28, 2008, 05:26:40 PM

I thought ALL E7s had 1/2" bolt holes... The 5.0 uses a 7/16" bolt with a 1/2" shoulder...