Hello, What is the difference in a Windsor, Cleveland 351 motor are they 2 bolt/4bolt main like chevys Thanks Mike

 

My understanding was that they where pretty different from each other. The Windsor is the way to go in my opinion.

 

windsor is based off the small block 289 family lots of aftermarket stuff...


Ford 335 engine - Wikipedia, the free encyclopedia


Ford Windsor engine - Wikipedia, the free encyclopedia


2 very different engines.

 

They share the same bore spacing, bore and stroke. After that, not a lot.

Check this out. It's at the top of the small block forum:

Kelly hotrod - Ford Engines Page 1

The 351W was intro'd in '69, and is patterned after the 289/302, but has bigger mains/rods and a taller block, in addition to other differences. No four bolts.

The 351C was intro'd in 1970, and is somewhat similar to the Boss 302 intro'd in '69. Shorter deck than the 351W. Same bore spacing, so you can swap heads with some work on water passages etc. Some 4 bolt, most 2 bolt. This was a canted valve, bigger valve engine with very good performance, especially "Boss", "HO", & "CJ" versions.


The C was only in production until 1974, while the W soldiered on for years and years....

These days, hi perf parts are cheap and easy for the 351W, and it's a cheaper engine to build up, since there were millions served.

DO NOT confuse the later, taller block 351M in the mix. Same bore spacing, heads seem similar, but it was never a hi perf engine, and needs serious work for performance.

 

history of the "M" good read

History of the Ford 351M

bob

 

The 351W (Windsor) is considered to be a "Small Block" engine and the 351C (Cleveland) a big block engine. Weights are appropriatly different as such. The 351M (Modified or Michigan) is a follow on derivative of the Cleveland.

 

The only Ford big blocks are the 429/460, FE series and MEL. The 289, 302, 351W/C/M and 400 are all small blocks since they all have the same bore spacing. This is what Ford itself lists them as.

 

Not only bore spacing, but lower block dimensions as well, so the same motor mounts can be used between them, except the 351M/400, which uses it's own 3 bolt mount, but has castings there that line up with the other 2 bolt mounts.

 

Not true.

The entire FE series is also big block - actually they are Y-block design. The FE engine series is NOT a small block, nor is the 427 or 428 which are also FEs.

And there are 400 engine designs off both the 289/351 W series and the 351C series. Entirely different engines Cleveland and Windsor.

I'd like to see your "List."

 

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A screen capture of the Ford Racing Performance Catalogue:

 

A 351C has a lower deck than a 351W. The 400/351M have a higher deck than an FE. The BB/SB terms are of little use with respect to these engines.

 

The Boss 302 is a 302 block with Cleveland heads. I believe there is a different oiling setup but not sure what the blocks have in difference. Jack Roush was behind the Boss engines. Maybe a search including his name would give you the history you need.

 

You two are in violent agreement

 

If I'm not mistaken all 351c, 351m, & 400 blocks can be fitted with 4 bolt mains but only a few 351c's are 4-bolt origionally. They are also refered to as "medium" blocks by some, but all this block size is nonsence made up for nascar. Compare the weight of the "small block ch#$y" to the different Ford series.

Clayton