Extreme duty timing chain
Thread Starter
Burning Brakes
Joined: Sep 2003
Posts: 1,214
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From: Miami FL
Extreme duty timing chain
Has anyone had problems with the "extreme duty timing chain"? I had one istalled when I did my LT1/LT4 conversion and after sending my Vette to the shop to correct an oil leak (from the timing cover/oil pan area) the mechanic pulled the timing geat out and it showed quie a bit of wear. It had less that 8k miles on it. It is also quite a bit heavier that the stock unit. The mechanic recommended to install an LT4 timing gear and chain set up.
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
Originally Posted by TOO_HOTTVETTE
Has anyone had problems with the "extreme duty timing chain"? I had one istalled when I did my LT1/LT4 conversion and after sending my Vette to the shop to correct an oil leak (from the timing cover/oil pan area) the mechanic pulled the timing geat out and it showed quie a bit of wear. It had less that 8k miles on it. It is also quite a bit heavier that the stock unit. The mechanic recommended to install an LT4 timing gear and chain set up.
Good night.
cardo0
Burning Brakes
Joined: Jan 2002
Posts: 1,228
Likes: 1
From: Dallas Texas
I believe the LT4 timing chain setup is fairly expensive (if you cannot reuse the gears from your extreme setup). Have you thought about running an electric water pump from CSI or Meziere which would allow you to run a cheap, reliable true double roller from Coyles? I've ran that combo for about 2 years and 30k miles with zero problems from the electric water pump.
Burning Brakes
Joined: Dec 2001
Posts: 901
Likes: 15
From: Punta Gorda, FL
I think you should run from this mechanic. The extreme duty timing set IS the LT4 timing set. It was the upgrade for the higher RPM LT4 engine.
And yes, I have had some trouble with mine. I'm on the second one and it's making a bunch of noise. I'll be switching to an aftermarket double roller and an electric water pump it's ever replaced.
And yes, I have had some trouble with mine. I'm on the second one and it's making a bunch of noise. I'll be switching to an aftermarket double roller and an electric water pump it's ever replaced.
Thread Starter
Burning Brakes
Joined: Sep 2003
Posts: 1,214
Likes: 0
From: Miami FL
Originally Posted by lspalding
I think you should run from this mechanic. The extreme duty timing set IS the LT4 timing set. It was the upgrade for the higher RPM LT4 engine.
And yes, I have had some trouble with mine. I'm on the second one and it's making a bunch of noise. I'll be switching to an aftermarket double roller and an electric water pump it's ever replaced.
And yes, I have had some trouble with mine. I'm on the second one and it's making a bunch of noise. I'll be switching to an aftermarket double roller and an electric water pump it's ever replaced.
