351 replacing a 302

[skullandbones]

I attempted a search to check if threads about the above were done already. No luck. So I'll ask this question: if I want to change out my 302 at some time, how would a 351 fit with what I have? How much would have to be changed out? Would the intake work? Are heads interchangeable? How about the bell housing? I thought 50 ci would be a good next step but it could be more trouble than it's worth. I know the deck height is taller on a 351 W but that's about all I know regarding this engine. Has anyone out there ever gone in this direction and what pros and cons would you give for the experience? Thanks in advance, WEK.:cool:

[michael everson]

You will need a new intake, new distributor, longer push rods (I think) and new headers or J pipes to match the engine to the exhaust. I think pretty much everything else will work.

[Jeff Kleiner]

What Mike said plus oil pan.

Jeff

[OCCPete]

Flywheel and harmonic balancer are different also - 28 oz counterweight rather than 50 oz.

Pete

[michael everson]

Why the oil pan?

[CraigS]

Michael I am not sure the difference but pan manufacturers seem to list a different number for the 351 vs 302. I saw one where they just added one additional digit to the part number so maybe its a small difference. maybe it's the pickup rather than the pan.

[Bob Cowan]

- The diameter of the rear main cap is bigger on a 351, and the oil pan has to fit the cap.

- You can use the same distributor, but then you also have to use the same oil pump and oil pump drive shaft. Not a bnig deal, and can save some serious bux.

- the only difference in the oil pump is the size of the drive shaft.

- because the block is taller, the intake valley is wider. You can buy spacers to fit a 302 manifold on a 351 block; but then the carb might be too tall. You're better off buying a new manifold and carb.

- new headers, side pipes are the same.

- Alternator bracket is usually different, because the front mounting hole in the head has moved. Same with power steering brackets.

[turbonut48]

Just stroke it. Everything will fit then.

The Nut





What? Nobody else thinks its a good way to get the cubes, but have everything fit right back in?

The Nut