What options are there besides stock replacement and the GMPP "extreme duty" for timing chains, if one wishes to retain the mechanical drive waterpump?

 

you pretty much named the best ones to use,you left out the original Lt4 factory chain..

 

Does the Extreme Duty set work fine with the stock cover or does it need to be clearanced?

 

I am pretty sure there is no clearancing.

 

Comp makes one, but it's not worth the price.

-Dustin-

 

I'm running the extreme duty timing set. I didn't have to modify anything, it just bolted on.

 

Thanks guys.

 

mine is a stock replacement, whats wrong with that? cheaper and i dont know of any failures

 

A sbc timing chain is identical to an LT1 chain. That opens up a few more options.

 

he wants to keep mechanical water pump so a gear SET will have to be for an lt1

 

The stock chain is plenty strong...I still run a stock one which I replaced in 2005 when we did the cam swap just as PM...Never had any issues with it at all...

--Alan

 

I guess it really boild down to if the OP is referring to the chain only or the timing set. It seems he is referring to the set, but it is not perfectly clear to all.

 

I was referring to the set, my bad.

And not to attention ***** or anything, but it is she, not he.

 

Sorry, I could not tell...

 

well i have in that case, we need pics!. just kidding, but that only difference is the cam gear. the crank gear and the chain are the same. I used to get new cam gears from the dealership for real cheap, that's why I suggested a sbc chain.

but seriously, where,s the pics. :P

damn this phone is hard to type on..........