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Chevy width rods on big block Mopar width rod journal??

Posted By: Dodger440

Chevy width rods on big block Mopar width rod journal?? - 12/30/09 03:32 AM

I had a 4.15 stroke big block crankshaft that started out with Mopar size rod journals, reground to the big block Chevy 2.2 journals. Its time to buy connecting rods and I was wondering if there were any major downfalls to running a Chevy width connecting rod on a Mopar width journal? Will there be any issues with the extra side clearance? Thanks for any input!
Posted By: Thumperdart

Re: Chevy width rods on big block Mopar width rod journal?? - 12/30/09 03:38 AM

I`ve been runnin em for almost 9 years and it SEEMS to be working ok so far w/about .035-.050 clearance per journal.
Posted By: Bob_Coomer

Re: Chevy width rods on big block Mopar width rod journal?? - 12/30/09 03:43 AM

First one I put together bout 5-6 years ago, had .075-.080 side clearance..that engine was one of the best ones yet..easy on bearings, and what seemed like indestructible...
dont worry.
Posted By: Thumperdart

Re: Chevy width rods on big block Mopar width rod journal?? - 12/30/09 03:50 AM

Indestructable and a helluva ride ESPECIALLY on the street.
Posted By: Mike Swann

Re: Chevy width rods on big block Mopar width rod journal?? - 12/30/09 02:33 PM

It would only be an issue with very high rpm, fly-weight rotating mass and super low compression height; like CE or PS.
Posted By: polyspheric

Re: Chevy width rods on big block Mopar width rod journal?? - 12/30/09 09:52 PM

The oil clearance is a non-issue, but check to be sure the rods can strike the cheek before the pin boss touches the rod eye.
Posted By: maximum entropy

Re: Chevy width rods on big block Mopar width rod journal?? - 12/30/09 10:05 PM

many years of carefree high speed motoring here.
Posted By: Dodger440

Re: Chevy width rods on big block Mopar width rod journal?? - 12/31/09 12:16 AM

Thanks for all the replys! Looks like I have nothing to worry about.
Posted By: CDoering

Re: Chevy width rods on big block Mopar width rod journal?? - 12/31/09 02:19 AM

I believe Eagle sells a rod that has Chevy 2.200 rod journal and has Mopar big end width of 1.007. That is if you don't already have rods.
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