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Hey guys I know this is not a truck question. I found a 72 351c a guy is selling. It came out of a car that was wrecked years ago. It is a 4 bolt main with 4v heads. It was taken apart and heavily greased to prevent rusting. He tells me that it could easily go back together. What do you think it is worth? It also comes with a 2v motor.
Thanks.
The clevelands at one time were the preferred engine by many . They had far better breathing than the windsors but not as good a bottom end hence the Boss engines ( WINDOR BOTTOM CLEAVLAND TOP ) . Far harder to get performance parts for . I would think it's biggest value would be to someone doing a restoration .
The 4 bolt with the 4v heads can go for good money to the right person. I sold mine years ago for $1K It was original bore with forged flat tops assembled and balanced. Had oil pan to intake.
The 2 v heads are supposed to be better for low range torque. More support out there for the Windsor version. I "think" the bell housing on the Cleveland is the same as the 429/460? Do your research for parts compatibility. What do you want to do with it?
Probable more interest to the car guys that need them for a resto.
...but not as good a bottom end hence the Boss engines ( WINDOR BOTTOM CLEAVLAND TOP ) .
Beg to differ with you on that. The bottom end of a Cleveland engine is pretty much bullet proof. The 351 Boss was all Cleveland, and that same 4 bolt main block was also the basis for the 351 Cobra Jet and HO engines. The Boss 302 was a special racing engine that used modified 351C 4V heads and was placed in street cars for homologation to Trans-Am racing. It had no low rpm torque, but could run 8000rpm all day long. The unique Boss 302 block has several differences over the standard Windsor block, including heavier interior, screw in freeze plugs, and 4 bolt mains for strength. It had more in common with a Cleveland block than a Windsor block. No other production Windsor ever had 4 bolt mains.
Thanks for that clarification. It's been a while since I had one. Was it the distributor that fit the 429/460? The Chevy guys have it easy.
Yes, in the late 60's when Ford was designing the 335/385 series engines, they were working toward more parts interchangeability. Rocker arms, timing sets and distributors interchange.
The Cleveland engine uses the same distributor and rocker arms as a 429/460. As mentioned above the bell housing and location of the motor mount bosses are the same as a 289, 302, 351 Windsor. Performance parts for a Cleveland will cost more, the block is extremely thin walled, any bore over .030 is suspect and should be sonic tested. It is the little things that will test your resolve if you choose to use one. But you wont have a belly button engine when you get done.
Beg to differ with you on that. The bottom end of a Cleveland engine is pretty much bullet proof. The 351 Boss was all Cleveland, and that same 4 bolt main block was also the basis for the 351 Cobra Jet and HO engines. The Boss 302 was a special racing engine that used modified 351C 4V heads and was placed in street cars for homologation to Trans-Am racing. It had no low rpm torque, but could run 8000rpm all day long. The unique Boss 302 block has several differences over the standard Windsor block, including heavier interior, screw in freeze plugs, and 4 bolt mains for strength. It had more in common with a Cleveland block than a Windsor block. No other production Windsor ever had 4 bolt mains.
Cleveland 4 bolt mains
351 Windsor
Ok I didn't know about the 351 but I was under the impression the 302 was a windsor block . There are intakes and coolant routing mods to put cleveland heads on a windsor but allot of specialty parts for little gain . Did all cleavlands have 4 bolt mains ?
Ok I didn't know about the 351 but I was under the impression the 302 was a windsor block . There are intakes and coolant routing mods to put cleveland heads on a windsor but allot of specialty parts for little gain . Did all cleavlands have 4 bolt mains ?
The Boss 351 and 351Cobra Jet came with 4 bolt mains. All of the blocks have the bosses for the four bolt mains. The general feeling among Cleveland guys is that they are not needed for most street builds. Ford ran short of 2 bolt main blocks in 72 and several 2V engines were built with the four bolt blocks.
Ok I didn't know about the 351 but I was under the impression the 302 was a windsor block .
You are correct the Boss 302 was based on the 302 Windsor design, but the block was a totally different and unique casting from the typical, production 302. In 1968, Ford blew up a ton of 302's in Trans-Am racing developing a 5 Litre engine (the displacement limit in Trans-Am at the time) that could live in that environment.
The clevelands at one time were the preferred engine by many . They had far better breathing than the windsors but not as good a bottom end hence the Boss engines ( WINDOR BOTTOM CLEAVLAND TOP ) . Far harder to get performance parts for . I would think it's biggest value would be to someone doing a restoration .
I think that there is a bit of confusion on the definition of "bottom end" in this context. The Clevelands, especially the 4V, have their power range in the higher RPM range...the bottom end of the RPM range was weak due to the massive amount of fuel/air dumping into the cylinders and no power there to get things up and spinning. This is why they were so devastating on the track, big power up in the high RPM range where they ran at 100 MPH+ speeds.
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