351vs302 headers
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Senior User
Joined: Jan 2005
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351vs302 headers
Hi Im going to be swapping in a 351 in place of my 302 and I plan on running headers. Maybee full length but I was wondering is there any difference between the 302 header vs 351 size wize I mean will they fit around the motor. Because On my 302 the smog get pumped behind the y pipe and on the 351 is on the mainifolds. and i am converting everything from my 302 to 351 so If I want headers i have to order them for my 302 even though there going on a 351 Right? Any also what would a good pair of headers be for a 94 F150 4x4. Also i have a solid axle in the truck will this make a difference. Thanks
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Joined: Dec 2002
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From: Kuna ID
351W and 302 motors use the same heads, the blocks are taller. If you had headers on the 302 and swapped in the 351, you would have to get the Y-pipe redone to reach the headers as they would be higher up, but could reuse your headers. I would get a set of shorty style headers, that way you don't have to worry about long tubes hitting you axle. If you have a decent amount of lift, it probably won't even matter.
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Senior User
Joined: Jan 2005
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I have 6 to 7 in the front for lift but I was actually looking at it and I am more worried about it hitting the driveshaft. I was also wondering do you know of a good set of long tubes. Thanks Danny
