LS6 Block Worth the money?
Thread Starter
On The Tree
Joined: Apr 2004
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From: Sacramento, Ca. /Waco, Tx.
LS6 Block Worth the money? I'm looking at what all it is going to cost to build another motor for my car. The block that is in the car is a 125k mile unit, and I am debating on if I should have this block re-sleeved if I can do that, or spending the extra cash on a new LS6 Block. I believe TSP has them for around $700, and talking to a guy I know who owns the local performance shop (DC Motorsports...was Nitro Dave's Performance) he said that he would go with the ls6 block due to better oiling, and the fact that it is "said" to make more hp? Is this true? I mean, I'm not wanting to cut any corners in this re-build or go cheap...but is it REALLY worth the extra $700? The combo isn't going to be anything very wild..stage 2.5 5.3 Truck heads, TSP 231/237 cam, and an LSX intake. So would it be worth it? Any insight is apprecaited.
Thanks,
Jason
Thanks,
Jason
Blocks
Originally Posted by Slow98TA
I'm looking at what all it is going to cost to build another motor for my car. The block that is in the car is a 125k mile unit, and I am debating on if I should have this block re-sleeved if I can do that, or spending the extra cash on a new LS6 Block. I believe TSP has them for around $700, and talking to a guy I know who owns the local performance shop (DC Motorsports...was Nitro Dave's Performance) he said that he would go with the ls6 block due to better oiling, and the fact that it is "said" to make more hp? Is this true? I mean, I'm not wanting to cut any corners in this re-build or go cheap...but is it REALLY worth the extra $700? The combo isn't going to be anything very wild..stage 2.5 5.3 Truck heads, TSP 231/237 cam, and an LSX intake. So would it be worth it? Any insight is apprecaited.
Thanks,
Jason
Thanks,
Jason
Steve Demirjian
Race Engine Development
TECH Fanatic
Joined: Nov 2001
Posts: 1,248
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From: Kansas City, MO
Originally Posted by Jason99T/A
I personally would just find a used, LS1 block for around $300 and put the money elsewhere.
Jason
Jason
Or a 6L iron block. All of the blocks need a fair amount of work to be wothy anyway. Stress relief
Originally Posted by Slow98TA
So, will re-sleeving the block completely cancel out the fact that it's "nicely aged"? Or, are you speaking in areas other than the cylinder walls?
With a new unused LS6 block the outer block walls (they support the sleeves) will move in or out a few thousandths after machining out the original cylinder liner and wall due to residual stress in the casting. If that stress isn't reduced the outer block walls will move a lot more when the engine is put into use causing the cylinders to go out of round. You will end up with an oil burner or worse.
Stress relief cures the problem with new blocks but it runs $200 additional for the process. That covers removing the block from the CNC after roughing, cleaning, stress relief, and re-setup on the CNC for finish machining.
In any event, an LS1 block is much better suited to high output due to it's stronger main webbing (no large "breather" holes).
Steve Demirjian
Race Engine Development
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From: Hot Rainy Humid +2000 DA South Florida
Does the LS6 block supply better oiling to the lifters?
I heard that for a big power/high rpm setup the LS6 was the way to go so you can maintain good oil pressure throughout the motor.
Thoughts?
Lee
I heard that for a big power/high rpm setup the LS6 was the way to go so you can maintain good oil pressure throughout the motor.
Thoughts?
Lee
Trending Topics
oiling
Originally Posted by FEAR THE LS1
Does the LS6 block supply better oiling to the lifters?
I heard that for a big power/high rpm setup the LS6 was the way to go so you can maintain good oil pressure throughout the motor.
Thoughts?
Lee
I heard that for a big power/high rpm setup the LS6 was the way to go so you can maintain good oil pressure throughout the motor.
Thoughts?
Lee
Olds came out with a similar block for their 403 motor a few years back. Engine builders used to shun those things like the plague. I'm not about to start opening holes in the main webbing of my non LS6 race engines to make power.
Steve
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Verdad Gallardo iron blocks
Originally Posted by DenzSS
Or a 6L iron block. All of the blocks need a fair amount of work to be wothy anyway.Steve
Staging Lane
Joined: Sep 2003
Posts: 93
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Originally Posted by Steve - Race Eng
I've got an iron LS block coming in shortly to see if it can be sleeved with MID type sleeves. Down side is weight of course. It will cost more to sleeve since iron doesn't machine nearly as well as aluminum. If the iron block can be sleeved it will be a real strong piece.
Steve
Steve
