LT1 Double roller timing help!
LT1 Double roller timing help! What is the part number for the best double roller timing setup for the lt1 with the electric water pump and are there any thrust bearings or other components needed to make this change?
Thanks for the help guys!
Thanks for the help guys!
If you have a splined opti, I don't think you have much options then to convert to a vented opti and use the above.
TECH Veteran
Joined: Dec 2008
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From: Little Rock, AR
Your options for timing sets depends on your year, more specifically, whether or not you are using a vented opti. If you have a vented opti, you can use the Coyles 3146 Double roller. You will have to remove the reluctor ring if you have a '96-'97 OBDII car and you have to use the '96-'97 crank hub (shorter). You have to use an EWP (but you have that already).
If you have a splined opti, I don't think you have much options then to convert to a vented opti and use the above.
If you have a splined opti, I don't think you have much options then to convert to a vented opti and use the above.
TECH Veteran
Joined: Dec 2008
Posts: 4,144
Likes: 61
From: Little Rock, AR
9-3145 is what most LT1 people run for a Cloyes double roller.
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I am going with an SA Gear Double roller timing setup for roller cams PN (SA-78150) and Professional products SFI LT1 Damper with hub and woodruff key Do you think these will mesh properly? What is the difference between the hubs as far as from 95 to a 96-97?
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Verdad Gallardo TECH Veteran
Joined: Dec 2008
Posts: 4,144
Likes: 61
From: Little Rock, AR
93-95 hubs are longer than 96-97 hubs because there is no crank sensor. On 96-97s the reluctor for the crank sensor sits between the hub and the crank gear, taking up space. They shortened the hub to keep all the accessory pulleys aligned.
Yup, and usually when you go with a double roller like the cloyes 3145, the crank sprocket is just about as thick as the stock crank sprocket and the reluctor ring combined, so using the shorter OBD2 ('96-'97) keeps everything aligned correctly.
Have you put it all together yet to see if its all going to mesh right or just in the process?
