The Ford Barn

Tim Ayers · 03-11-2026, 12:44 AM

I would not even consider old JE or Jahns pistons. They are heavy and use old school cast rings. Go with Ross and get them with Metric rings

38 coupe · 03-11-2026, 05:35 AM

If someone wants a 3 7/8 stroke crank I have one in central Texas. I don't have any plans for it, and would let it go very reasonably if you convinced me you would use it in an engine. PM me if interested.

3W Hank · 03-11-2026, 02:54 PM

I found many 3.75 std size cranks here in Sweden ( cheap ) as no one need them and I has a Berco RTM 225 crankgrinder.
I like the idea with a 1/8 baby stroke and the 2" rods and std 3.75 C-H pistons ( just for historic ideas how it could been done ) but Tim, I will go Ross ofcourse.
But in the Weiand/stock heads engine I could go Jahns if I found them, as it will be more just a good look shop office engine.
My focus is on the race engine Merc 41 block set-up.

Tim Ayers · 03-11-2026, 05:26 PM

Quote:

Originally Posted by 3W Hank

I found many 3.75 std size cranks here in Sweden ( cheap ) as no one need them and I has a Berco RTM 225 crankgrinder.
I like the idea with a 1/8 baby stroke and the 2" rods and std 3.75 C-H pistons ( just for historic ideas how it could been done ) but Tim, I will go Ross ofcourse.
But in the Weiand/stock heads engine I could go Jahns if I found them, as it will be more just a good look shop office engine.
My focus is on the race engine Merc 41 block set-up.

Maybe I'm not following, but no one sees pistons once installed.

3W Hank · 03-12-2026, 06:59 AM

Might so be ofcourse but it's also a feeling.
This motor is more a mock-up cool thing in shop, something to look and enjoy parts from back then and how they made it.

Ex in a case one could see a FH but they like electronic injection, drysymp, beltdrive etc and no one see it under hood.
One could then install a LS6 but for some reson anyway like a FH.
What I'mean is there is feelings involved.
I come from NHRA stock racing, there is all about what parts or tech inside a engine.
Outside you see the carb more or less, so that lifestyle is all about legal parts and tech.
Guess I see the hotrodding that way to ?
Anyways, it's no rules here just ideas, but I just love hear history on parts and how it was done.

03-11-2026, 12:44 AM	#21
Tim Ayers Senior Member Join Date: May 2010 Location: NJ Posts: 7,226	Re: Crank stroke before 49 I would not even consider old JE or Jahns pistons. They are heavy and use old school cast rings. Go with Ross and get them with Metric rings

03-11-2026, 05:35 AM	#22
38 coupe Senior Member Join Date: May 2010 Location: South Texas Posts: 2,135	Re: Crank stroke before 49 If someone wants a 3 7/8 stroke crank I have one in central Texas. I don't have any plans for it, and would let it go very reasonably if you convinced me you would use it in an engine. PM me if interested.

03-11-2026, 02:54 PM	#23
3W Hank Senior Member Join Date: Feb 2022 Posts: 577	Re: Crank stroke before 49 I found many 3.75 std size cranks here in Sweden ( cheap ) as no one need them and I has a Berco RTM 225 crankgrinder. I like the idea with a 1/8 baby stroke and the 2" rods and std 3.75 C-H pistons ( just for historic ideas how it could been done ) but Tim, I will go Ross ofcourse. But in the Weiand/stock heads engine I could go Jahns if I found them, as it will be more just a good look shop office engine. My focus is on the race engine Merc 41 block set-up.

03-12-2026, 06:59 AM	#25
3W Hank Senior Member Join Date: Feb 2022 Posts: 577	Re: Crank stroke before 49 Might so be ofcourse but it's also a feeling. This motor is more a mock-up cool thing in shop, something to look and enjoy parts from back then and how they made it. Ex in a case one could see a FH but they like electronic injection, drysymp, beltdrive etc and no one see it under hood. One could then install a LS6 but for some reson anyway like a FH. What I'mean is there is feelings involved. I come from NHRA stock racing, there is all about what parts or tech inside a engine. Outside you see the carb more or less, so that lifestyle is all about legal parts and tech. Guess I see the hotrodding that way to ? Anyways, it's no rules here just ideas, but I just love hear history on parts and how it was done.