WEAK POINTS OF THE LS1?

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09-23-2006, 10:10 AM

GRIFF

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Join Date: Sep 2006

Location: Northwestern Pa

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WEAK POINTS OF THE LS1?

The engine is all aluminum right? How much power will the bottom end hold. The breathing capacity appears to be very good I am just interested in the block strength. Are afermarket internals becoming more available?

09-23-2006, 11:26 AM

uncle bill

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Location: San Antonio, Texas

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RE: WEAK POINTS OF THE LS1?

Yes, It's Aluminum but is a Y Block with cross bolted 6 main bolts like Chrysler 426 Hemi. MUCH STRONG.

09-23-2006, 12:06 PM

GRIFF

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RE: WEAK POINTS OF THE LS1?

The more I look at them the more I like them.

09-23-2006, 12:24 PM

JD1969

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Join Date: Jun 2005

Posts: 1,687

RE: WEAK POINTS OF THE LS1?

The rod bolts are a weak point, but thats an easy fix. Honetly I do know of one person who has had a crank problem. My feeling is that the block is good to about 550-600 hp mark.

09-23-2006, 01:02 PM

z28pete

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Join Date: Aug 2005

Location: North East PA

Posts: 9,215

RE: WEAK POINTS OF THE LS1?

If you are looking for a stronger LS type block, GM had recently come out with a cast iron racing block, LS style, good for 1500HP, or you could try out a truck cast iron block.