crankshaft stroke and rod journal size

[hbstang]

i have a crank that has the chrysler 2.375 rod journal size,and stroke is  4.375.due to the location of the rod lightning hole theres no way it can be turned to 2.200 dia. and maintain that stroke.maybe it could be offset ground to 4.500 or so.is that a stroke that can be used in a 427 sohc engine with no cam lobes?

[fekbmax]

You would probably be getting into rod to camshaft clearance issues.  This even happens some with a 4.375 stroke.  Normally you can clearance with the 4.375 but the 4.50 may be to tight. Also take into consideration as to what that grind would do to the  location of the oil passages. 

[Stangman]

I’m not sure but I think Jay has a 4.50 crank in his SOHC.

[jayb]

I have run a 4.6" stroke in the SOHC and currently have a 4.75" stroke for my race SOHC motor.  You can use a very long stroke with the SOHC.

[My427stang]

I am no SOHC guy, but I would be less worried about stroke and more worried about that much cut walking the oil feeds toward the outside edge

Although wouldn't be taking the full amount off the entire journal, it's quite a cut in some areas. I don't have a crank in front of me to see where they clock, my guess it would be about 1/2 the cut at the oil holes, which should be OK, but depends where they drilled them

[fekbmax]

Apparently I didn't read the last line where he mentioned it being for a SHOC. My bad..

[475fetoploader]

Could a Chrysler rod be used? You’re probably special ordering pistons regardless, just use the Chrysler pin size.
It seems to me Chrysler Rods are right in the ballpark for length.  Pin was maybe 1.094 or something diameter.  I understand not wanting the bearing speed associated with the Chrysler, however I did see one go pretty good once.

[hbstang]

thanks for all the replies.because the rod journal is not parrelell with lightning hole,i dont think offset grind is possible either.will look at it closer.but i do see that molnar has a 6.76 rod for this 2.375 dia rod journal.i think they are good rods and will be fine.