LS6 timing chain stonger than LS1?
Thread Starter
Racer
Joined: Jul 2003
Posts: 398
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From: Calera AL
LS6 timing chain stonger than LS1?
I am looking to replace my timing chain with a stronger chain. But I don't want to have to shim out the oil pump or have the front pulley machined. I want a bolt on replacement that is stronger. Is the LS6 chain stronger?
Melting Slicks
Joined: Jun 2004
Posts: 3,439
Likes: 6
From: Newark, DE
St. Jude Donor '06
http://forums.corvetteforum.com/showthread.php?t=875029
Based on this link for an "LS1 (Gen 3) Heavy Duty Timing Chain" I'm inclined to say no, since the "Gen 3 design" includes LS1, LS6 and LQ4 engines.
Last edited by BW1; Aug 1, 2004 at 11:20 PM. Reason: Add link for aftermarket timing chain
Melting Slicks
Joined: May 2003
Posts: 2,851
Likes: 1
From: San Bruno Ca
Originally Posted by X_03_Cobra_guy
I am looking to replace my timing chain with a stronger chain. But I don't want to have to shim out the oil pump or have the front pulley machined. I want a bolt on replacement that is stronger. Is the LS6 chain stronger?
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Safety Car
Joined: Sep 2003
Posts: 3,558
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From: Cape Coral FL
Have you looked at the JWIS timing chain? Thunder Racing has them. They are supposedly for a C5R and much stronger than a stock chain, and you don't need to install a new timing set, or shim and cut anything.
Drifting
Joined: May 2002
Posts: 1,607
Likes: 1
From: San Francisco CA
The Rollmaster double roller timing set is simply the best there is. Billet steel gears and a chain so beefy it makes the stock one look like it is made out of paper clips for under $100. For $20 more you can get one with a heat treated chain and a Torrington bearing on the cam gear 
The oil pump spacers are a no-brainer to install and as far as machining the pulley goes, some have done it but Andy at A&A Corvette has never had to.
Even if you feel it is necessary to machine the pulley, it is a small hassle compared to the knowledge that you have the best and most bullet proof timing set there is
The oil pump spacers are a no-brainer to install and as far as machining the pulley goes, some have done it but Andy at A&A Corvette has never had to.
Even if you feel it is necessary to machine the pulley, it is a small hassle compared to the knowledge that you have the best and most bullet proof timing set there is
Last edited by SFVetteman; Aug 2, 2004 at 04:36 PM.
Instructor
Joined: Oct 2001
Posts: 249
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From: Mesa AZ
I have the JWIS chain and regularly (every time the car is started 
) take mine to 7600RPM. It is holding up through about 40 runs so far. I am going to put the GM chain tensioner in the next time I take the water pump off though.
I found that the Rollmaster actually had a clearance problem on the back between the chain and crankshaft on my car. It would normally be fairly difficult to notice. I recently tore down a customer's motor with that setup on and found his was rubbing on the crank the whole time as well. It actually wore a spot on the chain and crankshaft. There were no clearance issues on an aftermarket forged crank though.
Mike
) take mine to 7600RPM. It is holding up through about 40 runs so far. I am going to put the GM chain tensioner in the next time I take the water pump off though.I found that the Rollmaster actually had a clearance problem on the back between the chain and crankshaft on my car. It would normally be fairly difficult to notice. I recently tore down a customer's motor with that setup on and found his was rubbing on the crank the whole time as well. It actually wore a spot on the chain and crankshaft. There were no clearance issues on an aftermarket forged crank though.
Mike
Thread Starter
Racer
Joined: Jul 2003
Posts: 398
Likes: 0
From: Calera AL
Originally Posted by ArKay99
Have you looked at the JWIS timing chain? Thunder Racing has them. They are supposedly for a C5R and much stronger than a stock chain, and you don't need to install a new timing set, or shim and cut anything.
