I think for all the work it would be easier to just offset grind a 292 or a 312 crank. You can get all kinds of different length rods and journal sizes to make strokes up to 3.6" and more. The Cleveland has a shorter snout and the flange and seal area would need considerable modification.  Also the Cleveland is an externally balanced engine and may not have enough counter weight  for you to do it internally, except with some mallory added.

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

When the 260/289's first came out, we built a C dragster stroker using a 312 crank in a 260 block. So they're fairly close.

Frank/Rebop

Bristol, In ( by Elkhart) 

Eyeballing a 351c crank next to a 312 crank; although the 2, 3, and 4 mains line up, the Cleveland #1 main is slightly forward of the Y #1 main. The crank could be machined to move the #1 main back in line, but the configuration of the #5 mains probably just won't work. By the time you machine the Cleveland #5 main to fit a Y-block, there's no flange left.



And the 351c snout is about 1/2 inch shorter.



I can post pictures if anyone is interested.



Edit: the Cleveland counterweights are about the same size as the Y counterweights, but the Y has counterweights around the #3 main that are virtually missing on the Cleveland block. It would probably need to be externally balanced.

Best regards,



Paul Menten

Meridian, Idaho

John, It's amazing to me that you know so much detail about this. You and Frank are serious y-block fans.



I'll compare my Cleveland crank to a y-crank to see if the idea has any merit. It sounds like the drawback would be the snout length. Looks like the Cleveland 2.75" mains are pretty close to the 312 2.625" size.

Best regards,



Paul Menten

Meridian, Idaho

I would have had to cast the crank, although it could have been steel. By the time I got through the tooling and casting prices, it became obvious that no one could have afforded it. Mummert was talking to SCAT but I don't know where that went. Would have been a ?Chinese casting, only way to get a reasonable price. I have a scat in the Ranger, bearings they supplied were Junk, but the crank was fine. Balance wasn't bad and the dimensions were pretty accurate.

Frank/Rebop

Bristol, In ( by Elkhart) 

Paul:

As I remember, 351s do not have a flange at the back for the flywheel, so the flywheel and starter issue will have to be addressed.  Also, the front snout is too short.  I guess if you had a steel crank, those areas could be welded and machined as required.  Also, the 351 Windsor center main flanges are .010 wider than a Y, would have to be built up and machined.  The Cleveland is the same width as the Y,  but has huge main journal sizes, would take a lot of grinding to get them to Y size.  Not sure about the size of the counterweights, they may have to be cut down.  The only thing easy about the swap is that the cylinder spacing is the same.  Maybe SCAT or someone who makes new stroker kits for the small block can machine one from a new blank and be able to provide proper front and back end configurations.  Pegleg once considered new stroker castings, but I don't think he found enough market to make the investment work.  What's the scoop, Frank?

John - "The Hoosier Hurricane"

Regarding stroker y-blocks; I thought I heard that a 351 crankshaft could be turned down to fit a y-block. It's a lot easier to find 351 cranks than 312 cranks, and they can be stroked out to the 3.64" max. I've only heard of it third hand, but I've got some 351 cranks and I know of a local machinist with the right kind of lathe to do the work, so I''ve been considering approaching him to find out about costs.

Best regards,



Paul Menten

Meridian, Idaho

I love Y blocks, we all do, but if I'm gonna spend 10 grand on a motor it ain't gonna be on a Y bock ... That would buy a hell of a motor.

Doing Fords for 45 years. '56 Customline Victoria

E.J. in Havana FL

First find a 292, pretty easy. Then get a good 312 crank, not so easy as.

Dyno is 500 a day. I think this is perfect for people like my brother -n -law, who likes this stuff but has a checkbook instead of a toolbox.

Lucky him, I guess. I prefer to do as much myself as I can afford it. But like was said, I don't have a machine shop and can't balance one. So, if it gets one more out here, I'm all for it. It took me a couple of years to piece mine together (just took my time and scrounged up stuff as I could afford it)

This way you call and tell them where to deliver it. Instant yblock. "You TOO can be just like those cool guys on y-blocksforever.com!"

       A  L  A  N   F  R  A  K  E  S   ~  Tulsa, OK    

Well with time constraints, & family commitments these days I'd be inclined to buy one if it were closer to 8k.

Could there be a made to order stroker called "Tim's Crate Engines"?