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Author Topic:   Rods
posted April 04, 2004 07:27 AM
What are the torque specs. for 6" Carillo rods with 7/16 bolts in a 383. Thanks for any help.

posted April 04, 2004 11:26 AM
if i recall correctly, it should be 60-65 ft. lbs. for a 7/16" rod bolt.

posted April 04, 2004 11:44 AM
if they are a stock type rod with a nut that sounds close, if they are an H beam or similar style with just the bolt they call for a stretch not a torque... TRUST ME on this one... undertorqued or not stretched properly will stretch them and spin a bearing at minimum... again, trust me.. I had 2 different guys destroy 2 engines both because of bad decisions concerning rod bolts... the last one ruined basically everything, block, pistons, cam, crank, pan... all junk... do it correct the first time!


posted April 04, 2004 12:31 PM
the rods should be torqued by amount of stretch not by a specific foot pound number.

They need to be torqued to .005"-.008" of stretch.

posted April 04, 2004 01:19 PM
If you don't have a way of measuring the bolt stretch, a 7/16 CARR SPS rod bolt torques to 75lbs with molly lube on the threads. This torque spec will get you within the bolt stretch spec's. If the bolt has a washer under it, which most do not, it will torque to 90lbs.


Hendren Racing Engines
Rutherfordton , NC
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posted April 05, 2004 05:36 PM
Thank you all very much.

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