Double Roller timing set question?
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Double Roller timing set question? Will a Cloyes Timing Chain set [CL-3145 ] fit on a 93 LT1 with an electric water pump with the original timing cover?
I know that it will work on my 95 however, a friend wants to install a double roller on his 93.
Thanks
Mike
I know that it will work on my 95 however, a friend wants to install a double roller on his 93.
Thanks
Mike
I not sure about that one on a 93, but on my 93 a run a double roller from cmotorsports. part # EX-187
http://www.cmotorsports.com/93-97-fb...ine-timingsets
http://www.cmotorsports.com/93-97-fb...ine-timingsets
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Yes, to run the Cloyes 9-3145, you need a 1995+ camshaft/optispark/timing cover/etc, as well as the electric waterpump. I run it on my 1994, using said conversions.
Why?
-The 1992-1994 LT1 cam gear had a slot in the center to accept the splined opti driveshaft. Without that exact style cam gear, your optispark will cease to function. The Cloyes 3145 simply will not accommodate a pre-95 optispark, since the center hole is enlarged & without splines.
-Beyond that, the Cloyes 9-3145 cam gear will not have the unique LT1 waterpump drive teeth on the back, thus rendering your factory internally-driven waterpump useless. That's where the electric waterpump comes in.
--------------------------
As I see it, you have four options as far as timing sets are concerned:
1) Buy a new stock-replacement 1993 GM timing set.
2) Try the $400 Cloyes '92-'94 timing set from More Performance.
3) Shell out $550 for the custom '92-'94 LT1 Doug Rippie timing set.
4) Spend the money to convert to a 1995+ camshaft/optispark/opti wiring harness/vacuum hoses/timing cover. Then you have the option of running the LT1/LT4 HD timing set. Or, if you add an electric waterpump to that list, you can run virtually any 1987+ SBC timing set.
If you need any part numbers, let me know...
-Alex
Why?
-The 1992-1994 LT1 cam gear had a slot in the center to accept the splined opti driveshaft. Without that exact style cam gear, your optispark will cease to function. The Cloyes 3145 simply will not accommodate a pre-95 optispark, since the center hole is enlarged & without splines.
-Beyond that, the Cloyes 9-3145 cam gear will not have the unique LT1 waterpump drive teeth on the back, thus rendering your factory internally-driven waterpump useless. That's where the electric waterpump comes in.
--------------------------
As I see it, you have four options as far as timing sets are concerned:
1) Buy a new stock-replacement 1993 GM timing set.
2) Try the $400 Cloyes '92-'94 timing set from More Performance.
3) Shell out $550 for the custom '92-'94 LT1 Doug Rippie timing set.
4) Spend the money to convert to a 1995+ camshaft/optispark/opti wiring harness/vacuum hoses/timing cover. Then you have the option of running the LT1/LT4 HD timing set. Or, if you add an electric waterpump to that list, you can run virtually any 1987+ SBC timing set.
If you need any part numbers, let me know...
-Alex
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*It should be noted that, if the product photos are accurate, the $400 Cloyes and $550 Doug Rippie timing sets appear to be the same type of stiff-backed/link-belt chain as used by the stock timing set. (i.e., these are not roller chains)
For this reason, I really wouldn't consider them -- if you were crazy enough to consider them in the first place, given the pricetag. Just letting you know your options...
For this reason, I really wouldn't consider them -- if you were crazy enough to consider them in the first place, given the pricetag. Just letting you know your options...
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Launching!
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From: Las Vegas, NV
Originally Posted by MattZ28
^huh?
I have a '96 and had to switch to a '94 style hub with the double roller.
I have a '96 and had to switch to a '94 style hub with the double roller.
That's what i'm trying to find out...Why do you need to switch to the 94 style? Why can't you use the 95-97 style. Just trying to get my information straight before i order a timing set this week.
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Originally Posted by Nite_Hawk
That's what i'm trying to find out...Why do you need to switch to the 94 style? Why can't you use the 95-97 style. Just trying to get my information straight before i order a timing set this week.
The double-roller crank gear is thicker, which might not allow enough space for the crank sensor behind the timing cover. In which case, the crank sensor would need to be removed & disabled. The electrical connector port for the crank sensor would also need to be sealed, unless you swap over to a 1995 cover.
As far as the hubs are concerned, I know that the 1996-1997 LT1 hubs were shorter to accommodate the crank sensor/reluctor wheel. Perhaps the longer '93-95 hubs are required to compensate & maintain pulley/belt alignment with the crank sensor removed?
Just an assumption. Perhaps someone else can clarify.
