Windsor and Cleveland Differences??

MazdaProwner · 01-19-2003, 05:20 PM

351 W 351C are Windosr and Cleveland. What is 351m??
I've been told that the M stands for Modified, if so what do they mean by modified?? Is it a hybrid of the Windsor and Cleveland?? Like maybe a Cleveland short block and Windsor heads perhaps??
Also what are the Differences between 351C and 351W??
Can any parts be interchanged??
Which one is better, or do they just have their own pros and cons and "better" is just personal preference?

The Deuce · 01-19-2003, 05:31 PM

The Clevelands are stronger motors, with 4 bolt mains. Here is a list of basic differences between the two. Basically, the 4 venturi Cleveland motor was the 'hot' 351 in the muscle car years. That's why its 'better'.

http://www.vintage-mustang.com/topic...cleveland.html

Shaggy · 01-19-2003, 05:50 PM

Duece is right for the most part except not all clevlands are 4 bolt motors. The M motor is a small displacement big block loosley based on the Clevland design and the Clevland is a big displacement Small block (the M has big block motor mounts and bellhousing pattern and the cleavland has small block motor mounts and bell pattern.) The M was a smog laden pig wihtt big main bearings as well bigger than even a windsor motor. Which is the reason you can turn down a 400 m crank to windsor mains and create a 408 stroker with one. The old poor boy combo was to use a 400 crank chrysler rods and 302 pistons to make a 408 i don't remember now which chrysler rods they were other than to say it was one of there six cylinders.

Crazy Horse GT · 01-19-2003, 10:39 PM

the 351m was a 400 , got about 8 miles to the gallon, had one, cost me 15.00 a day to drive to work, lol.

MEDIK418 · 01-20-2003, 01:11 AM

Actually, the 351-M is a 351. In the early 70's they built the 400 for the big passenger cars and trucks. Lots of torque in a low stress engine (low revs) In '78 they destroked it to a 351 by changing the grank and pistons. You can stroke a 351-M the same way. I did it last Summer. New stock 400 crank and stock pistons. Instant 400. Added a 2400 rpm torque convertor and it's one stump pullin 79 Bronco. AND. . . .compared to a Kenworth, it gets pretty good milage.

PKRWUD · 01-20-2003, 03:54 AM

The 351M is a 400 block with a 351W crank.

01-19-2003, 05:20 PM	#1
MazdaProwner Registered Member Join Date: Sep 2002 Location: Niagara Falls Canada Posts: 23	Windsor and Cleveland Differences?? 351 W 351C are Windosr and Cleveland. What is 351m?? I've been told that the M stands for Modified, if so what do they mean by modified?? Is it a hybrid of the Windsor and Cleveland?? Like maybe a Cleveland short block and Windsor heads perhaps?? Also what are the Differences between 351C and 351W?? Can any parts be interchanged?? Which one is better, or do they just have their own pros and cons and "better" is just personal preference?

01-19-2003, 05:31 PM	#2
The Deuce Registered Member Join Date: Apr 2002 Location: Atlanta, GA Posts: 2,325	The Clevelands are stronger motors, with 4 bolt mains. Here is a list of basic differences between the two. Basically, the 4 venturi Cleveland motor was the 'hot' 351 in the muscle car years. That's why its 'better'. http://www.vintage-mustang.com/topic...cleveland.html __________________ 1997 Mustang GT "The Freak" - 13.80 @ 101.70, 2.07 60' 1995 Honda VFR750 - not much @ really fast (actual data pending.) 1964.5 Mustang 289 Rice Haters Club Member #13

01-19-2003, 05:50 PM	#3
Shaggy Registered Member Join Date: Feb 1999 Location: Houston,TX Posts: 466	Duece is right for the most part except not all clevlands are 4 bolt motors. The M motor is a small displacement big block loosley based on the Clevland design and the Clevland is a big displacement Small block (the M has big block motor mounts and bellhousing pattern and the cleavland has small block motor mounts and bell pattern.) The M was a smog laden pig wihtt big main bearings as well bigger than even a windsor motor. Which is the reason you can turn down a 400 m crank to windsor mains and create a 408 stroker with one. The old poor boy combo was to use a 400 crank chrysler rods and 302 pistons to make a 408 i don't remember now which chrysler rods they were other than to say it was one of there six cylinders. __________________ A good plan, violently executed now, is better than a perfect plan next week. George S. Patton, General (1885-1945)

01-19-2003, 10:39 PM	#4
Crazy Horse GT Registered Member Join Date: Aug 2001 Location: Sale Creek, TN. C. S. A. Posts: 4,652	the 351m was a 400 , got about 8 miles to the gallon, had one, cost me 15.00 a day to drive to work, lol. __________________ 95 gt vert, lot's of stuff, it aint slow. 04 sonic blue v - six my beater 89 rs camaro iroc turbo hood, other stuff, my wifes ride 84 lx stang cammed up 289 hi po, etc 65 falcon, maybe by the year 2020. black 00gt, gone but never forgotten. R H C- member # 1 o.b.c. da prez- member # 1 if your under 40 dont ask. goodbye for now odie,r.i.p. 11-27-03

01-20-2003, 01:11 AM	#5
MEDIK418 Registered Member Join Date: Mar 1999 Location: Amarillo, Texas, USA Posts: 780	Actually, the 351-M is a 351. In the early 70's they built the 400 for the big passenger cars and trucks. Lots of torque in a low stress engine (low revs) In '78 they destroked it to a 351 by changing the grank and pistons. You can stroke a 351-M the same way. I did it last Summer. New stock 400 crank and stock pistons. Instant 400. Added a 2400 rpm torque convertor and it's one stump pullin 79 Bronco. AND. . . .compared to a Kenworth, it gets pretty good milage. __________________ 1986 four-eyed LX coupe, 358 Cleveland, Tremec TKO600/centerforce clutch, dish cut Probe forged pistons, comp cams hyd.roller cam, .579/.588@224/230, Edel.performer, 670 holley street avenger, CPR custom built long tubes, ported and polished 4bbl heads, manley valves, beehive springs, MSD peo-billet dist/MSD6AL, fluidamper, 5 lug conv. with 17x8 bullits there's more but it's still not finished yet. Oh, and the oldest boy is turning his 89 GT into a FFR cobra this next summer.

01-20-2003, 03:54 AM	#6
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	The 351M is a 400 block with a 351W crank. __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!