header clearance 351W
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Senior User
Joined: Aug 2001
Posts: 108
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From: northwest ohio
header clearance 351W
I have a 67 f100 with a 1975 351w in it. The guy that put the motor in it had to beat the back 2 cylinders on the header down because of clearance problems with the steering box (drivers side). Ive talked with the techlines at dynomax, headman, hooker, and sanderson headers and none of them have an application for my combo. I was also told that a 351w block is wider than a 302 that came stock in the 70-72 f100. any help would be greatly appreciated!
Postmaster
Joined: Nov 2001
Posts: 3,351
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From: Escondido, CA
header clearance 351W
You can buy the truck headers from Summit. All you need is the size of the exhaust ports. They look similiar to the old cast iron manifolds but have much better flow. Also they point down under the #8 cylinder. Would this help?
Junior User
Joined: Mar 2002
Posts: 74
Likes: 0
From: Bealeton Virginia
header clearance 351W
The Summit full-length headers (for 69-79 F100 302 2WD) will fit but it will be very tight -- on the drivers side they will be right against the steering box, and on the passenger side the collector flange will come very close to the block flange. A little dimpling on the tube against the steering box will make things liveable.
Chris Seay
Bealeton, VA
49 F1
68 F100
Chris Seay
Bealeton, VA
49 F1
68 F100
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