Timing chain and gear alternatives
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Teching In
Joined: Apr 2018
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From: Orange County
Timing chain and gear alternatives 
My LT1 is in a Chevy C10. Carb and top mounted distributor mods already done. Electric water pump conversion is next. I see now I have to pull the timing chain to get the water pump drive out of the block. (IMHO an incredibly dumb design). Question is...what timing chain and gearset should I put back in.? I see from other posts that Cloyes makes a double roller that works, but that is overkill for my engine. Is there a single roller that will work? Part # ??.
Last edited by Maynardogle; Mar 21, 2021 at 03:01 PM. Reason: Add pic
You can use the ZZ4 set if you don't need the water pump drive, I believe the p/n is 12371043. The LT4 extreme duty timing set uses the same crank sprocket and chain.
The water pump drive doesn't necessarily need to be removed to run a EWP though. You can leave it in there and it shouldn't cause any issues with the coupler disconnected.
The water pump drive doesn't necessarily need to be removed to run a EWP though. You can leave it in there and it shouldn't cause any issues with the coupler disconnected.
