differnce between a 351 cleveland and 351 windsor - F150online Forums



differnce between a 351 cleveland and 351 windsor

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  #1  
Old 03-24-2005, 01:42 PM
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differnce between a 351 cleveland and 351 windsor

whats the difference other than where theyre made?

i searched...
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Old 03-24-2005, 02:44 PM
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I always assumed that the Cleveland had 4 bolt mains.
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Old 03-24-2005, 02:46 PM
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Totally different believe it or not. Block bell housing pattern is different but biggest thing is the heads. Cleveland heads have a canted valve arrangemant and much bigger ports, especially on the 4v versions. This engine was only made a short period of time, 1971-1974. A version of it was also the 351m and the 400m made thru late 70's.
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Old 03-24-2005, 03:11 PM
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351 CLEVELAND HAS SMALL BLOCK BELLHOUSING
SAME AS WINSOR
351 M BIG BLOCK BELL HOUSING
CLEVELAND ENGINES hace timiing cover that is just a plate
mitch
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  #5  
Old 03-24-2005, 03:12 PM
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Here is a page showing some differences.

http://www.karmustang.com/identifyin...or_and_351.htm

The 351C was available in limited quantities in some '69 models and was readily available in 1970 Fords.
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Old 03-24-2005, 04:14 PM
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hmm thats a big difference

thanks
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Old 03-24-2005, 09:44 PM
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a 351W is based on a 289/302 type block that has a bigger bore where as the 351C block is based on the "385" series blocks that include the 351M, 400, 429, and 460 engines...zap!
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Old 03-24-2005, 10:03 PM
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The 351W is based on the 302 design. It has the same size pistons 4". It has a longer stroke and a much larger crankshaft. I owned one. I had a 70 Mustang that came with a 302 (220hp), C4 auto, and 8" rear. I bought a 69 Cougar that had the 351W 4 barrel engine (290hp), FMX auto, and 9" rear. I put the entire Cougar drive train in the Mustang along with the power disc brakes. It was the equivalent of a 69 Mach 1 Mustang as far as drive train. This engine was preemission controls with a high compression and it would haul butt. It also got decent mileage on the highway.

Later I bought a 73 Cougar with the 351C engine. This was after the compression was dropped and the power was down. The 351C engine is physically a much larger engine. It has HUGE valves and intake/exhaust ports. It also got terrible gas mileage, about 10mpg running around Raleigh. It was low on power in the low rpm ranges due to the huge intake ports/etc. It ran fairly well after the rpms built up, but was nothing compared to the 70 Mustang with the 351W. Just to give you an idea of how it ran, I got into several drag races going to work with the same 82 Z28 Camaro. I could beat him, but not by much! The Cougar was a slug coming off the line. The 82z28 had either 145hp or 160hp depending if it had a carb or "Crossfire" fuel injection.

The Nascar Ford guys loved this engine. This is what Bill Elliot was running back in 85 and 86 when he had about 50 hp more than anybody else. Remember qualifying at 212 mph at Talledaga. Nascar wouldn't let him use the Cleveland engine after 86. Bill's car was so much faster than anybody else that he got behind two laps at Daytona due to a bad tire and he made up the two laps under the green flag!!!!

Last edited by Roadie; 03-24-2005 at 10:08 PM.
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Old 03-25-2005, 12:27 AM
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Ah, itís nice to reminisce a bit. I had a 1971 Mach 1 with a 351c with ram-air, and the one thing that Iíll tell about that stang is that it rocked. A guy that I worked with had a 1969 Vette that couldnít come close to keeping up no matter how hard he tried, he always accused me of having the 429 instead of the 351...the way that that particular engine ran I always thought that if you had to choose between a cleveland and a windsor that the only choice was a cleveland. Getting back to how to tell the difference between the two, a good way is to compare the size of the spark pulgs, the cleveand has a much smaller spark pulg than the windsor.
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  #10  
Old 03-25-2005, 01:28 AM
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I thought one was made in Cleveland and the other in Windsor.
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Old 03-25-2005, 05:16 PM
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  #12  
Old 03-25-2005, 05:37 PM
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Quote:
Originally posted by drug delivery
I thought one was made in Cleveland and the other in Windsor.
you win!!! because they are...zap!(or were)
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Old 03-26-2005, 02:28 PM
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I had a early 70's (can't remember the exact year) Mercury Cyclone 351c . Damned uglyist car ever but it did run.
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  #14  
Old 03-28-2005, 03:22 PM
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i always thought the heads and intake were different and if you took them and bolted them to a 302 then you had a boss 302.... my cousin knows all these answers but fortuantly i havent talked to him in several years
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Old 03-28-2005, 09:13 PM
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I'm pretty sure the C heads won't fit on the 302 windsor block.
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