351 ford
Laughing Gas
Joined: Aug 2006
Posts: 815
Likes: 4
From: mountaintop, Pa
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.
Ford 335 engine - Wikipedia, the free encyclopedia
Ford Windsor engine - Wikipedia, the free encyclopedia
2 very different engines.
Super Moderator
Joined: Apr 2004
Posts: 34,466
Likes: 2,798
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.
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.
Laughing Gas
Joined: Aug 2006
Posts: 815
Likes: 4
From: mountaintop, Pa
Post Fiend
Joined: May 2008
Posts: 7,641
Likes: 21
From: Poway, Ca.
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.
Lead Driver
Joined: Aug 2002
Posts: 6,682
Likes: 12
From: Saskatoon SK Canada
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.
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I'll have the Roast Duck
Joined: Jul 2002
Posts: 9,622
Likes: 108
From: Northshore, MN
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.
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Post Fiend
Joined: May 2008
Posts: 7,641
Likes: 21
From: Poway, Ca.
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."
Super Moderator
Joined: Apr 2004
Posts: 34,466
Likes: 2,798
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.
Senior User
Joined: Jun 2007
Posts: 394
Likes: 0
From: Springfield, Il
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.
Elder User
Joined: Oct 2007
Posts: 790
Likes: 0
From: Highland Village, TX
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."
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."
Elder User
Joined: Sep 2002
Posts: 948
Likes: 0
From: McAlester, OK
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#$y" to the different Ford series.
Clayton
Compare the weight of the "small block ch#$y" to the different Ford series.Clayton