hi, the 400 came out in 70, same as the 351 c, in 75 they took and put a 351w crank in the 400 block and made the 351m to replace the FE. all have same bore spacing but the 351c had smaller main jurnals, so they just reworked the 351w crank.

 lincoln/merc. y-blocks &mel's                                                               bucyrus, ohio.

      Poly, Yes same tall deck, and open chamber 2bbl Cleveland style heads. 

Frank/Rebop

Bristol, In ( by Elkhart) 

The Windsor and Cleveland designation came about as those were the cities in which the engines were manufactured. The 302 was actually made in Cleveland not in Windsor (to confuse the issue even more). The 351C 4 bbl versions actually had intake valves that were a bit too large and like the Boss 302 had to really spin to make torque and horsepower. However I've been told if you are willing to spend the money and stroke one they will really go. There are some folks who are fans of the 400M and are getting some big numbers out of these motors, go figure . One guy is Barnett High Performance who I think is in Michigan.

MO Mike

I'd rather be lucky than good.................

    but good ain't bad!!

Riddle me this--did the 351M & 400(M) share the same deck height? I know the 400 had a 1/2" longer stroke than the 351. I'd heard rumors that they used the same deck height, however.



I kind of lost track of Ford engines for a number of years because I was really into Mopars and AMCs (please don't hold that against me!).

Freezing in WI

Personally - I always like the architecture of the "twisted" Cleveland style heads - angling the valves in the "right" direction worked some serious flow number magic. Just look at some old numbers from B. Glidden - and Gap and Roush stocker days. 

Anybody here take a ride in a "for real" Boss 351(C)? As a showroom stocker they would absolutely mangle big block chebbie Camaros and Hemi "Cudas.

 
 Steve Metzger       Tucson, Arizona

So, interrestingly enough, the 351W is the largest small-block in Ford's arsonal.  The 351 Cleveland was the smallest big-block.  Torino's etc, used the 351C (because they had so much more room), while Mustangs used the Windsor.  (Fox) Mustangs had aftermarket raised hoods to accommodate the 351W, especially EFI engine setups.  Squattier carbureted setups squeezed under stock hoods.

I believe everyone using the 351 would love to use the Cleveland version as they produced more torque due to their longer rods, longer skirts, and less block flex.  Fit restriction is physical engine size.

Royal Oak, Michigan (Four miles north of Detroit, and 12 miles NORTH of Windsor, Canada).  That's right, we're north of Canada.

Ford 292 Y-Block major overhaul by simplyconnected

The 400 was an enlarged 351M,which was pretty much based on the 351C but substantially de-tuned to make it more of a workhorse than a high performance engine.The 351 Windsor is an enlarged 302 which was based on the original Windsor which came in 223,255,260 and 289 cubic inch variants.The 351  C(Cleveland) 400 and 351 M(Modified) engines have nothing in common with the Windsors,except for the displacement of the 351's.To make it a little more interesting,The Boss 302 and Boss 351 engines were a marriage of modified C/M heads and a Windsor block.Thoroughly confused now? I know I am.

 

Paul,

Boonville,MO

That reminds me. I understand that the 351W was a "Windsor" engine similar to the 302, but with a longer stroke. The 351C was a different animal, but with the same internal dimensions. However, wasn't there also a 351M, which was a de-stroked 400?



Never could keep all of that straight.

Freezing in WI

I do too.  Mufflers work well with a mild cam.  Put a hot street cam in, and there goes quiet.  Three-chamber Flowmasters were pretty quiet with 5.0HO.  Same mufflers were LOUD when I swapped to a 351W, once I put that General Kinetics roller cam in.  Radio/DVD was useless while the engine was running.  Bore sizes are identical, but stroke is 1/2" longer in the 351.  Everything else is identical.

It's all about what you want.  I remember (E-250) Club Wagons with 460's.  They were family vehicles, de-tuned to be all-around workhorses.  They could sure pull an Airstream up all those Rocky Mountains, or run the family to the grocery store for milk, and quiet.

Potential?  Up the giggy!  (No replacement for displacement.)

Royal Oak, Michigan (Four miles north of Detroit, and 12 miles NORTH of Windsor, Canada).  That's right, we're north of Canada.

Ford 292 Y-Block major overhaul by simplyconnected

I know, that's where I always kill myself.. I love the rumpity-rump..Guess that's my prob with women too...lol.. But I'm assumin this is a small cam so wouldn't hurt it as bad..

William



1957 Ford Fairlane 500

292 Bored .30 over

Fordomatic