Who makes the strongest timing chain?

[GinoBeats]

Is that doccumented anywhere?

my '04 chain stretched after 800 miles...

Yeah its in a few places, in the parts catalogue, on the SI servicer and from GM SPO


But still didn't convince me to install the newer unit

[Monzsta]

If you're looking to get rid of noise, GM did it for you in the 3900.

Dodge had a similar timing chain issue with their 3.9 magnum and released an updated timing kit that included an active tensioner a lot like this one to eliminate the noise.

[torq455]

can we use the chain and gears from the 3900?

[Badassoldspower]

How about the timing set from the DOHC cars? They are quite a thick chain, and they have a active tensioner from what i remember.

[Monzsta]

can we use the chain and gears from the 3900?

You won't be able to use the timing set, as the 3900 has VVT. The tensioner would be the only thing you'd need.

As for the 3.4 DOHC, can someone find a pic for comparison?

Edit: Found one.

[Superdave]

that chain looks beefy.. but the big question is the upper sprocket mounting.. Single bolt or 3 bolt?

[1988GTU]

:cross fingers for 3 bolts: ...

[gpchris]

The dohc uses one bolt but it also uses the cam BELT sprocket to help mount it.

dohc timing chain:

[Superdave]

The dohc uses one bolt but it also uses the cam BELT sprocket to help mount it.

dohc timing chain:

damn that's one thick ass chain.. lol

anyone have pics of the cam sprocket alone? Ben????

[gpchris]

anyone have pics of the cam sprocket alone? Ben????

dohc chain sprocket / Belt sprocket

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[1988GTU]

If someone fabricated a cam gear like the tdc's yet made it fit the pushrod style mounting area, all we would need to buy is the crank gear and chain! Probably grind out the timing cover too, but that is a given.

[Badassoldspower]

Possibly some one could fabricate a centric ring that would seat into the DOHC cam gear so that we could reuse our bolt and be sure we had no cam sproket runout, but i really do like this idea. And also just as a bit of information, the DOHC crank sproket is a very tight press fit whereas our are not to recall.

[Alxsmt]

a machine shop i was going through was gonna get me a stronger timing chain, they just needed the number of links according to them. maby i wil call them up but they take so long!

these guys are old school v8 guys too.. maby they dont know what there talking about?

[19Cutlass94]

Depending on how much you wanna spend... I dont think you need a bigger chain as much as you need a stronger material chain. If a stronger chain could be made from better materials and keeping it the same size would probably be better.

[torq455]

mmmm titanium chain....drool.