The Ford Barn

my4dv8 · 04-26-2013, 03:56 AM

Does anyone manufacture a new stroker y block rotating assembly. We Know some offer a 331 stroker with a core charge on the old 312 crank but surely there is a new rotational assembly on offer? We feel the economics of finding and rebuilding may outweigh a new assembly.
We wish to increase the capacity of our 292 industrial motor to a good torquey street motor to blow off pesky SBC.

Ole Don · 04-26-2013, 08:37 AM

Ted Eaton from Texas is the man to seek. He is a machinist who has built some large Y blocks and is considered the horse power king of Y blocks.

sprink88 · 04-26-2013, 09:46 AM

John Mummert has quite a bit of performance parts for sale too.

Hot Rod Reverend · 04-26-2013, 09:47 AM

you are going to find that companies will put out something for the Y block but they will come at a price (moldex crank). The issue is that 312 cranks are getting very hard to come by (don't ask me how I know), but no one company has stepped up to start manufacturing replacement cranks for the 312 (or 292 for that matter). 292's are still so plenteous, you should follow Ole Don's advice about Ted Eaton.

what complicates matters further is that there is a heap more talk and scuttlebutt about manufacturing a new block that will be a 4" bore but still be Y block. Of course, Mummert already has heads going and they are so popular they cannot keep up with the demand.

Oh for more 312 cranks!!!

my4dv8 · 04-26-2013, 05:22 PM

At the moment that crank would have to be a Billet. The Y block crank is a project we have in mind, but at the moment there is no firm ETA. What does your budget and timeframe look like?

Thank you,

Alex Gonzalez
Crank Sales
SCAT Enterprises, Inc.
(310) 370-5501 EXT.121
[email protected]

Ole Don · 04-27-2013, 08:02 AM

Sponsored Links (Register now to hide all advertisements)

If someone had a lot of time, it may be interesting to see how many four inch Mercury crankshafts were made for Flatheads, and how many 312 cranks made for Y blocks. I think the low number would surprise many. The fact that SCAT responds is wonderful news.

petew · 04-27-2013, 06:58 PM

Quote:

Originally Posted by Ole Don

If someone had a lot of time, it may be interesting to see how many four inch Mercury crankshafts were made for Flatheads, and how many 312 cranks made for Y blocks. I think the low number would surprise many. The fact that SCAT responds is wonderful news.

That is great news.

Hot Rod Reverend · 04-28-2013, 02:33 PM

Quote:

Originally Posted by Ole Don

If someone had a lot of time, it may be interesting to see how many four inch Mercury crankshafts were made for Flatheads, and how many 312 cranks made for Y blocks. I think the low number would surprise many. The fact that SCAT responds is wonderful news.

Ditto!

I would like to see a FORGED 312 crank offered!

Dana Barlow · 04-29-2013, 09:01 AM

312 strock that fits in a 292 block is good,can that be done even,I know that would take new pistons or rods or both

Noswal · 04-29-2013, 09:51 AM

312 crank can be modified to fit the 292 block. Main journals must be turned to fit the 292 block mains, bore the block for 312 pistons and install the 312 crank, rods and pistons and bingo!! 312 engine.

Hot Rod Reverend · 04-29-2013, 03:38 PM

Quote:

Originally Posted by Noswal

312 crank can be modified to fit the 292 block. Main journals must be turned to fit the 292 block mains, bore the block for 312 pistons and install the 312 crank, rods and pistons and bingo!! 312 engine.

Yep - the last build I did the machinist did exactly that - turned down the mains to 292 std size. The only issue was that we could not keep the oil slinger. The shops stone was not small enough to get between the crank flange and the oil slinger itself as I recall...

TedEaton · 04-30-2013, 07:49 AM

Alex. The sooner the better for some kind of stroker crankshaft for the Y engines. A 3.600" stroke with 2.00" journals would be a popular seller on my end but something with the Honda rod journals and even more stroke would be suitable. I've built several Y's with the Honda journals and a 4.000" stroke that assemble with a minimum of misery. I've no issues with a cast crank for this application as most builds are being targetted for 500 HP or less. Ted.

Quote:

Originally Posted by my4dv8

At the moment that crank would have to be a Billet. The Y block crank is a project we have in mind, but at the moment there is no firm ETA. What does your budget and timeframe look like?

Thank you,

Alex Gonzalez
Crank Sales
SCAT Enterprises, Inc.
(310) 370-5501 EXT.121
[email protected]

46yblock · 04-30-2013, 06:54 PM

I was lucky. The crank grinder that turned my 312 to 292 mains first said he didnt have a stone small enough to save the slinger. I expected it to be gone when I picked the crank up, but it was still there! They found the smaller stone.

my4dv8 · 05-01-2013, 04:02 AM

Great on how to turn a 312 crank down to fit a 292 and make a torque monster stroker. BUT try and find a 312 crank is the question. So we must just wait patiently until SCAT or similar finds time to produce something as demand increases.

TedEaton · 05-03-2013, 06:27 AM

The 272/292 cranks can also be offset ground. While this does not get the same stroke increase that you get by doing that to a 312 crankshaft, it's still relatively easy to get a 3.48" stroke out of the 272/292 crankshafts. And there are a multitude of 272/292 cranks laying loose so that ends up being a less inexpensive option for increasing the cubic inches on your Y.

04-26-2013, 03:56 AM	#1
my4dv8 Senior Member Join Date: Aug 2010 Location: New Zealand Posts: 1,131	Y block stroker crank Does anyone manufacture a new stroker y block rotating assembly. We Know some offer a 331 stroker with a core charge on the old 312 crank but surely there is a new rotational assembly on offer? We feel the economics of finding and rebuilding may outweigh a new assembly. We wish to increase the capacity of our 292 industrial motor to a good torquey street motor to blow off pesky SBC.

04-26-2013, 08:37 AM	#2
Ole Don Senior Member Join Date: May 2010 Location: St. Michael, Minnesota Posts: 1,713	Re: Y block stroker crank Ted Eaton from Texas is the man to seek. He is a machinist who has built some large Y blocks and is considered the horse power king of Y blocks.

04-26-2013, 09:46 AM	#3
sprink88 Member Join Date: Mar 2012 Posts: 39	Re: Y block stroker crank John Mummert has quite a bit of performance parts for sale too.

04-26-2013, 09:47 AM	#4
Hot Rod Reverend Senior Member Join Date: May 2010 Location: Lancaster, CA Posts: 947	Re: Y block stroker crank you are going to find that companies will put out something for the Y block but they will come at a price (moldex crank). The issue is that 312 cranks are getting very hard to come by (don't ask me how I know), but no one company has stepped up to start manufacturing replacement cranks for the 312 (or 292 for that matter). 292's are still so plenteous, you should follow Ole Don's advice about Ted Eaton. what complicates matters further is that there is a heap more talk and scuttlebutt about manufacturing a new block that will be a 4" bore but still be Y block. Of course, Mummert already has heads going and they are so popular they cannot keep up with the demand. Oh for more 312 cranks!!! __________________ Lancaster, California Visit hotrodreverend.com to view hundreds of pictures and videos of the build of the 1955 Ford Club Sedan!

04-26-2013, 05:22 PM	#5
my4dv8 Senior Member Join Date: Aug 2010 Location: New Zealand Posts: 1,131	Re: Y block stroker crank At the moment that crank would have to be a Billet. The Y block crank is a project we have in mind, but at the moment there is no firm ETA. What does your budget and timeframe look like? Thank you, Alex Gonzalez Crank Sales SCAT Enterprises, Inc. (310) 370-5501 EXT.121 [email protected]

04-27-2013, 08:02 AM	#6
Ole Don Senior Member Join Date: May 2010 Location: St. Michael, Minnesota Posts: 1,713	Re: Y block stroker crank Sponsored Links (Register now to hide all advertisements) If someone had a lot of time, it may be interesting to see how many four inch Mercury crankshafts were made for Flatheads, and how many 312 cranks made for Y blocks. I think the low number would surprise many. The fact that SCAT responds is wonderful news.

04-29-2013, 09:01 AM	#9
Dana Barlow Senior Member Join Date: Jun 2010 Location: Miami Fl. Posts: 149	Re: Y block stroker crank 312 strock that fits in a 292 block is good,can that be done even,I know that would take new pistons or rods or both

04-29-2013, 09:51 AM	#10
Noswal Senior Member Join Date: May 2010 Location: Manchester, TN Posts: 191	Re: Y block stroker crank 312 crank can be modified to fit the 292 block. Main journals must be turned to fit the 292 block mains, bore the block for 312 pistons and install the 312 crank, rods and pistons and bingo!! 312 engine.

04-30-2013, 06:54 PM	#13
46yblock Senior Member Join Date: Jul 2011 Location: S. Oregon Posts: 304	Re: Y block stroker crank I was lucky. The crank grinder that turned my 312 to 292 mains first said he didnt have a stone small enough to save the slinger. I expected it to be gone when I picked the crank up, but it was still there! They found the smaller stone. __________________ Mike, S. Oregon 46 Ford 1/2 ton, '62 Merc Meteor S33, '54 Ford 600 tractor, '64 Falcon Futura, 1960 Thunderbird

05-01-2013, 04:02 AM	#14
my4dv8 Senior Member Join Date: Aug 2010 Location: New Zealand Posts: 1,131	Re: Y block stroker crank Great on how to turn a 312 crank down to fit a 292 and make a torque monster stroker. BUT try and find a 312 crank is the question. So we must just wait patiently until SCAT or similar finds time to produce something as demand increases.

05-03-2013, 06:27 AM	#15
TedEaton Senior Member Join Date: Nov 2012 Location: Central Texas Posts: 160	Re: Y block stroker crank The 272/292 cranks can also be offset ground. While this does not get the same stroke increase that you get by doing that to a 312 crankshaft, it's still relatively easy to get a 3.48" stroke out of the 272/292 crankshafts. And there are a multitude of 272/292 cranks laying loose so that ends up being a less inexpensive option for increasing the cubic inches on your Y.