Originally Posted by Hotrod Lincoln
I install 3/8-24 Helicoil inserts in the rods and use recycled NASCAR rod bolts. There is approximately twice the thread engagement over a bolt/nut setup, and MUCH stronger bolts than original. Recondition the rod big ends after installing the upgraded bolts. Ignore the original torque specs, and use a bolt stretch gauge during installation.

www.ebay.com/itm/132277630088?

www.ebay.com/itm/306708592699?

www.ebay.com/itm/334465775872?

Jerry

Wow, that's an upgrade I wouldn't have thought of. Those bolts look like they have a reduced shank diameter...what do you use to align the rod and cap?

Do you stack a couple of Heli-coil inserts in the rod to get that much thread engagement?

Last edited by G508; 05/08/2026 8:38 PM.