nw main studs and bolts?
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On The Tree
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Joined: May 2004
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From: Searcy Arkansas
new main studs and bolts? I am putting together a ls1 i am rebuilding, do you or is it necessary to put new main bolts in the otor, i bought new head bolts, but not mains, let me know , thanks
Last edited by camaromotorsports; Jan 30, 2007 at 12:14 AM.
Yes the main bolts are not re-useable. You must buy new ones. If you want to use main studs it is highly recommended that you get the block line honed. If you go back with new stock bolts it should be fine.
The part numbers for the GM inner torque to yield main cap bolts are 12560272 and 12560373. The smaller bolts that go in from the outside of the block are re-useable just be sure to clean them up and put a dab of thread sealer on them before you torque them down.
