LT1-LT4 Modifications 1993-97 Gen II Small Block V8

what timing chain to go with

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Old 02-11-2009, 01:56 PM
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Just make sure you get the whole set, both sprockets and the chain. I just replaced mine it had 170,000 miles on it and the gears were worn out! They had marks on every tooth where the chain had started digging in to it. The new set had ALOT less slack in the chain. I dont think I was too far away from jumping timing.
Old 02-11-2009, 03:48 PM
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Originally Posted by shbox
Some have seemed to miss the fact that he said he has a 1994. In that case, he has a non-vented opti (I saw nothing about a vented conversion). So...he basically can use only a stock (or stock type) set that has the provision in the cam gear to turn his optispark. An LT4 ED will not work.
Elliot's94Z's list is correct for stock 94 components.
Opse. All I saw was 25th anniversary. No idea what year that was, don't know about TA/Firebird/WS6 history.
Old 02-11-2009, 05:33 PM
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I did a full top end build and just went with a Stock replacement from the dealer(it was in stock) My motor only had 32k

Shbox is right youll need to convert to a vented opti to use the LT4 set up anyways. You can use a double roller but its not needed and I beleive you need to switch to an EWP for that also.
I have asked my times and I still have never heard of a Stock set up actualty failing.



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