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Drivetrain => The Nailhead => Topic started by: 35chevcoupe on January 29, 2018, 01:29:22 PM

Title: connecting rod bolts ?
Post by: 35chevcoupe on January 29, 2018, 01:29:22 PM

When rebuilding these engines is anyone replacing the connecting rod bolts with ARP bolts or is everyone just leaving the stock bolts in and re using them ?

Title: Re: connecting rod bolts ?
Post by: cwmcobra on January 29, 2018, 02:31:20 PM

I bought ARP replacements from Carmen.  He told me they are designed for a 455, but work on a nailhead.  He said I might not be able to use the nuts and he was right.  I'll check on the part number and get back to you.

Chuck

Title: Re: connecting rod bolts ?
Post by: cwmcobra on January 29, 2018, 02:46:29 PM

ARP 125-6001

Title: Re: connecting rod bolts ?
Post by: Brian on January 29, 2018, 03:02:30 PM

What is the issue with the nuts?  I put a set in my 65 401 and don't remember having any issues with using the nuts.

Title: Re: connecting rod bolts ?
Post by: cwmcobra on January 29, 2018, 03:08:40 PM

I think the flange and hex on them is just too large to fit in the machined pockets for the nuts.  The originals have the 12-point configuration and the ARPs have hex nuts.  Perhaps the hex takes a larger diameter to clear the pockets.

Chuck