WEAK POINTS OF THE LS1?

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Sep 23, 2006 | 10:10 AM

GRIFF

Thread Starter

3rd Gear Member

Joined: Sep 2006

Posts: 948

From: Northwestern Pa

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?

Sep 23, 2006 | 11:26 AM

uncle bill

3rd Gear Member

Joined: Sep 2006

Posts: 793

From: San Antonio, Texas

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.

Sep 23, 2006 | 12:06 PM

GRIFF

Thread Starter

3rd Gear Member

Joined: Sep 2006

Posts: 948

From: Northwestern Pa

RE: WEAK POINTS OF THE LS1?

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

Sep 23, 2006 | 12:24 PM

JD1969

4th Gear Member

Joined: 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.

Sep 23, 2006 | 01:02 PM

z28pete

Tech Droid

Joined: Aug 2005

Posts: 9,215

From: North East PA

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.