CRG Discussion Forum

Camaro Research Group Discussion => Mild Modifications => Topic started by: bheston on April 27, 2018, 07:58:29 PM

Title: Timing Chain - Double or Single Roller?
Post by: bheston on April 27, 2018, 07:58:29 PM

Since I will need to rebuild my engine, an old topic has resurfaced.  Double or single roller timing chain?  Some say the double roller is better because it can absorb more crank harmonics and it is stronger.  Some say the single roller is stronger because the teeth are thicker.  Having lost a couple teeth on a double roller (pic below), I'm looking for opinions....

Title: Re: Timing Chain - Double or Single Roller?
Post by: Mike S on April 27, 2018, 08:04:22 PM

 Probably depends on how you plan on driving the car. Myself, I installed a single link chain in my L35.
My holeshot days have been long over.  :)

Mike

Title: Re: Timing Chain - Double or Single Roller?
Post by: bcmiller on April 27, 2018, 10:07:05 PM

My opinion would be double roller.

What happened to your car? How loose was the chain?

I like stuff that’s overbuilt, I run a gear drive. :)

Title: Re: Timing Chain - Double or Single Roller?
Post by: camaroboy68ss on April 27, 2018, 10:29:37 PM

double roller, the gear on the distributor will break before one of those will, I know from experience , lol

Title: Re: Timing Chain - Double or Single Roller?
Post by: bheston on April 28, 2018, 12:12:48 AM

Quote from: bcmiller on April 27, 2018, 10:07:05 PM

My opinion would be double roller.

What happened to your car? How loose was the chain?

I like stuff that’s overbuilt, I run a gear drive. :)

Not sure how this happened. It was just discovered during the tear down.

Title: Re: Timing Chain - Double or Single Roller?
Post by: Stingr69 on April 28, 2018, 01:12:21 PM

It does not matter much either way.  Not a common failure once you get rid of the nylon gear teeth that were originally there.  I used the factory HD pieces years ago but they are long gone now.

Title: Re: Timing Chain - Double or Single Roller?
Post by: Kelley W King on April 28, 2018, 09:50:42 PM

If you break either one before the chain wears out something is wrong. I had a Pontiac that would shuck one about every 5k miles. Turned out to be the aftermarket cam.

Title: Re: Timing Chain - Double or Single Roller?
Post by: JKZ27 on April 30, 2018, 10:31:16 AM

I used a single link in my 327 which gets run hard on occasion and will probably use one in my L48. I had a straight cut gear drive when I was a kid but I threw that obnoxious thing in the garbage.

Use either, just don't get the cheapest one.

Title: Re: Timing Chain - Double or Single Roller?
Post by: bcmiller on May 02, 2018, 11:43:49 PM

Gear drive might be a bit loud, but it is not likely to break. :)

Not designed to run on a street car though.