351W heads
Guest
Posts: n/a
351W heads
Howdy
Alright, I'm looking for the cold, hard truth on a subject I've heard many opinions on. Is it really worth the effort to swap 351W heads onto a 302? Has anyone out there actually did it and felt a real increase in power? Or is it just a waste of time? The reason I ask is I have a chance to get a pair of 351W heads for free, and I have a fresh 302 they could go on. And if it is a worthwhile project, what else do I need to switch out, i.e. longer pushrods, diff. lifters, rocker arms, etc. Please help. Thanks Joe
70 F100 Stepside
302 V-8/3spd stk.
Alright, I'm looking for the cold, hard truth on a subject I've heard many opinions on. Is it really worth the effort to swap 351W heads onto a 302? Has anyone out there actually did it and felt a real increase in power? Or is it just a waste of time? The reason I ask is I have a chance to get a pair of 351W heads for free, and I have a fresh 302 they could go on. And if it is a worthwhile project, what else do I need to switch out, i.e. longer pushrods, diff. lifters, rocker arms, etc. Please help. Thanks Joe
70 F100 Stepside
302 V-8/3spd stk.
Laughing Gas
Joined: Oct 1999
Posts: 1,165
Likes: 3
From: central Alberta
351W heads
The 351 heads are a direct bolt on.They will breathe better as they have bigger ports and valves but they also have bigger combustion chambers so you will lose compression unless you either mill the heads (necessitating the use of shorter pushrods) or use flat top or pop up pistons. The best heads to use are from 69 or 70(C9AE or DOAE casting nos); they have smaller chambers.
Thread
Thread Starter
Forum
Replies
Last Post
rsalter66
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
2
May 29, 2007 11:57 PM
FordPickup460
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
5
Jul 12, 2004 03:14 PM
