77 f250 custom
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the 351 cleveland was a big block the small block is the 351 windsor the cleveland wasnt even introduced till 1969
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I told you so...Just kidding. BTW, the Cleveland IS a small block. It will directly bolt in place of 260, 289 (as long as it is a 6 bolt bellhousing), 302 and 351W. The engine mounts and bellhousing bolt patterns are the same. Only difference is accessory mounting and exhaust. The 351M is essentially a 400 block with 351W crank and Cleveland style heads which make this a big block engine. It shares the bellhousing pattern with the 400 and 460 engines. The 460 requires different engine mounts.
Last edited by bigbronc; 01-21-2009 at 08:58 AM.
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BTW, your earlier post indicated that the Cleveland was "totally different" from the 351M and 400 engines. You can't have your cake and eat it too.
The 335 series engines designate Ford small blocks of which include the 351C. Google it!
Last edited by bigbronc; 01-21-2009 at 10:50 PM.
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the 351c, 351m, and 400 are from the same family, the term "totally different" comes from what you described, the 351c retains the small block bellhousing. the 351m and 400 have taller blocks. the 351 clevland will not fit in the same cars as the windser due to the larger top end. the winder's water inlet is thru the intake manifold and the 351c, 351m and 400 is thru the block. the heads were used between the 302 351w and the 351c to achieve the boss motor but they are not a dirrect bolt on. i believe the cranks have different journal sizes. also bigbronc i got your message im just not sure how the messageing works im not that great with these computers.
Last edited by 90taz; 01-22-2009 at 08:17 PM.
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I've got a thousand bucks that says you're wrong. The 351c will directly bolt into where a 302 came out of (I know, because I did it in a 70 Mustang, thank you). It has a 4 inch bore and 3.5 inch stroke, just as does windsor. True, the cleveland has a different block, BUT it WILL replace a 289, 302, or 351W. Like I said, just change the accessory mounts and exhaust and voila. The 351m and 400 are DIFFERENT blocks because they have big block bellhousings. The 335 series is the smallblock series that includes the 289, 302, 351W AND 351C. End of discussion.
As far as the Cleveland not "fitting in the same cars as the windsor", howcome it came in the Cougars, and Mustangs from 1969-1974? Were the engine bays different from car to car? Ever heard of a 351 Boss? Guess what, it wasn't a Windsor engine.
And the heads will bolt on, but you have to alter the water passages. Pick up any Ford Motorsports catalog and it will have a section showing you how to do that to make a Cleveland head mate to a 302 block.
What's wrong, don't you have Google on your computer? I know this from 20 plus years of working on Ford engines.
As far as the Cleveland not "fitting in the same cars as the windsor", howcome it came in the Cougars, and Mustangs from 1969-1974? Were the engine bays different from car to car? Ever heard of a 351 Boss? Guess what, it wasn't a Windsor engine.
And the heads will bolt on, but you have to alter the water passages. Pick up any Ford Motorsports catalog and it will have a section showing you how to do that to make a Cleveland head mate to a 302 block.
What's wrong, don't you have Google on your computer? I know this from 20 plus years of working on Ford engines.
Last edited by bigbronc; 01-22-2009 at 08:27 PM.