correct rod and piston size on ls1?

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Feb 22, 2006 | 01:36 PM

lowchevy2go

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From: memphis, tennessee

correct rod and piston size on ls1?

what is the correct rod and piston size for a stock ls1. I am trying to upgrade and there a million different sizes. thanx

Feb 22, 2006 | 01:46 PM

NemeSS

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From: Houston,TX

rod length 6.098
bore size 3.898-3.900
piston compressionn height/distance 1.338-1.339
-.007-.008 out the hole

Feb 22, 2006 | 04:29 PM

Demon SS

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while the above information is correct, most folks use a 6.125 rod and a 3.905 piston when upgrading the stock aluminum short block

Feb 23, 2006 | 02:07 AM

lowchevy2go

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should i have any clearence problems with a MS3 and 241 heads..unmilled

Feb 23, 2006 | 05:56 AM

GuitsBoy

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Quote:

Originally Posted by lowchevy2go

should i have any clearence problems with a MS3 and 241 heads..unmilled

No, the magic stick should clear the pistons in an otherwise stock application.

Feb 23, 2006 | 01:08 PM

92zcamaroperson

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what power range n/a is the stock rotating assembly with arp rod bolts and main cap bolts good for reliably? In other words if someones power goal is less than 450 rear wheel n/a is it worth upgrading pistons and rods? Even with a 100 shot on top of that it should hold it all just fine shouldnt it?

Feb 23, 2006 | 01:34 PM

GuitsBoy

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Quote:

Originally Posted by 92zcamaroperson

450 HP is fine on the stock shortblock using ARP harware. A hundred shot on top of that is pushing it, but chances are that itll hold. Pistons will fail first followed by rods. The crank and block will hold a ton of power, however the heads might lift.