how strong is a LS3 block?
also i was told by a vendor who resleeves LS blocks that the LS3 block is not rigid as the LS2 and LS7 block.
Last edited by Abdullah; Jun 3, 2011 at 07:24 AM.
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LS3 block is incredibly strong, just don't get it hot and 1000+ rwhp is possible. I'm building 832 at the crank with my 415 LS3 and have zero problems, well besides an LS7 lifter failing. :O
My buddy has made 950rwhp on a stock LS3 block/crank, forged rods/pistons, ported LS3 castings, stock LS3 intake with a GTS76 turbo (custom wheels in it).
LS7 blocks are supposed to have thinner sleeves..... Steve Demirjian at R.E.D. resleeves a lot of them even being N/A.
LS7 blocks are supposed to have thinner sleeves..... Steve Demirjian at R.E.D. resleeves a lot of them even being N/A.
The LS3's have experienced some oiling failures when used on road courses. Probably not a factor on a drag strip. The stongest option you mentioned is the Darton sleeved LS2 block.
Just keep it under 88MPH.
Just keep it under 88MPH.
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What exactly is failing on these? Any solutions to the problems they're having?
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