351w transplant

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Sep 2, 2013 | 04:16 PM

BRay09

Thread Starter

Cargo Master

Joined: Oct 2008

Posts: 2,308

Likes: 1

From: Elyria, OH

351w transplant

i want to replace the knocking 302 in my bronco with a 351w out of my 96 f250. It is going to be rebuilt and is flat tappet. I am going for low end torque here. Plans for the motor is for it to be bored out and honed, crank polished and a rebuild kit. Crane 444232 camshaft, 1.7RR, full exhaust and MSD ignition.

Heres what i have:
92 bronco 302 with E4OD
33" tires
3.55 ls rear end

I have a complete 96 f250 351w/e4OD parts truck i want to use. Is this a pretty straight forward swap? I know that i need a new y-pipe, but it is getting LT headers on it. What brand of headers fit this bronco best? Emissions arent a problem around these parts, so cat and emissions stuff will be removed.

So what i *think* ineed to do is use the engine harness from the 302 motor and plug it into the 351w computer. Is there anything else i need to watch for? Will the 302 flex plate work with the 351w?

Sep 2, 2013 | 04:27 PM

blkF250HD

Posting Guru

Joined: Apr 2011

Posts: 1,119

Likes: 1

From: Hartland, WI

96 should be a roller engine.

Sep 2, 2013 | 06:20 PM

Conanski

FTE Legend

Joined: Jun 2006

Posts: 31,930

Likes: 1,499

From: Ottawa, Ontario

Yes the '96 motor should already have a decent roller cam so just reuse it. No you can't use the 302 flexplate it has 50oz imbalance and the 5.8 has 28oz.

Sep 2, 2013 | 08:58 PM

BRay09

Thread Starter

Cargo Master

Joined: Oct 2008

Posts: 2,308

Likes: 1

From: Elyria, OH

The 96 original engine with 230000was replaced with the one out of the truck in my signature when I put that rebuilt motor in my truck. So it has the small flat tappet cam in it with a new distributor with cast gear on it.