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

Lt1 Timing Chain

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Old 01-24-2006, 06:35 AM
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Default Lt1 Timing Chain
Does anyone make a roller timing chain for the early lt1?
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Old 01-24-2006, 08:39 AM
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Lunati, its a single roller. GM sprocket but a Lunati Chain.
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Old 01-24-2006, 09:27 AM
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Originally Posted by BlackScreaminMachine
Lunati, its a single roller. GM sprocket but a Lunati Chain.
The one I found that lunati sells is a link belt chain
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Old 01-24-2006, 10:37 AM
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my bad, I just caught that. Well if you want a roller, its time for a vented opti. I wish that would make a unvented opti sprocket
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Old 01-24-2006, 11:44 AM
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the LT4 extreme is a singal roller. You can get a Cloyes but it is not for a standard LTx water pump
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Old 01-24-2006, 12:30 PM
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WHen we say early LT1, this means the NON-vented opti. Its a different timing chain cover, optispark etc etc. LT4 uses a Vented opti and different cam sprocket
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Old 01-24-2006, 02:00 PM
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yes, 92-95 uses a different cover and opti, I have found roller chains for 96 and 97 but not the early ones.
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Old 01-25-2006, 08:05 PM
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'95 uses the same opti that the '96 and '97's do, the timing cover just doesn't have the spot for the crank sensor.
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Old 01-25-2006, 11:16 PM
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Lunati makes one and so does Comp
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Old 01-26-2006, 01:21 AM
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But, do you have to replace the Sprockets when you do the chain, or can you just buy the roller chain. Don't really feel like dropping almost 3bills on a timing chain.
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Old 01-26-2006, 09:15 AM
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I found the one comp sells and it is $590.00
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Old 01-26-2006, 11:25 AM
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I used a Cloyes double roller and CSI water pump, its cheaper.
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Old 01-26-2006, 11:59 AM
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Originally Posted by stevemilz
I used a Cloyes double roller and CSI water pump, its cheaper.

i did the same thing, works great but you need a vented opti and cover
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Old 01-26-2006, 11:59 AM
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Well.... you have a vented opti-spark, which in the aft-formentioned post it was asked was there an early LT1 roller timing chain.... early is non-vented opti.
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Old 01-26-2006, 01:07 PM
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so, since i have a 97 i can just buy the Cloyes double roller and get an Electric water pump?
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Old 01-26-2006, 01:34 PM
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yeap, you also gotta close the WP hole, just incase.
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Old 01-26-2006, 01:51 PM
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cool...have a friend in the machine shop on base, he owes me a favor.
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