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| Angelsword | LT-4 Double Row Timing Set | ||
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Guru Newb
 
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Has any one replaced the single row set with a double row set? Cloyes is the only aftermarket set I have found. A bit pricey at $355.00…Without the need for a cam driven water pump gear, there must be others that will fit.
It’s just a small block Chevy… |
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Posted on: 2008/2/14 5:26
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| bogus | RE:LT-4 Double Row Timing Set | ||
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Grand Imperial Pooh-Bah
 
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good question... but there are other differences.
Cloyes and GMPP both offer the double roller for the LT4, IIRC. |
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Posted on: 2008/2/14 7:05
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| Notorious | RE:LT-4 Double Row Timing Set | ||
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Elite Guru
 
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On a '96 I'm not sure what you might run into re/ the crank sensor. But I do know that if necessary, it can be eliminated and programmed out of the PCM. Other than that, once you eliminate the water pump drive, you can use the Cloyes 9-3145 which is under $100. It's what I have in my '95.
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Posted on: 2008/2/14 13:44
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I hate sporks... |
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| pianoguy | RE:LT-4 Double Row Timing Set | ||
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Guru Emeritus
 
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Cloyes is good stuff - I used to put them in my Pontiacs 30+ years ago after the factory timing set failed (which they always did).
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Posted on: 2008/2/14 14:54
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| Angelsword | RE:LT-4 Double Row Timing Set | ||
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Guru Newb
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Thanks for the feedback guys.
Notorious, I was not sure what you thought could interfere with the crank sensor. So, I took a walk out to my shop…You’re right. A double row sprocket might move the reluctor ring out of sight of the sensor. I’ll take some careful measurements before I make a decision. Bogus, you mentioned “other differencesâ€, am I overlooking something else? Pianoguy, thanks for the endorsement of Cloyes. I’ve used their timing sets on fast revving Ford small blocks without problems. Thanks again! I’ll confirm with my favorite source for such information…Summit Racing…and let ya'll know what I find. |
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Posted on: 2008/2/15 2:06
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| Notorious | RE:LT-4 Double Row Timing Set | ||
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Elite Guru
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Quote:
Back in the 80s, I raced a Ford stock car on dirt for a few years. I used a Cloyes DR in my 351 Cleveland engines. Although I used more than one engine over those years, the same Cloyes timing set was used over and over again in each engine. Needless to say, when I need a timing set, it's always a Cloyes. |
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Posted on: 2008/2/15 2:20
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| Josh | RE:LT-4 Double Row Timing Set | ||
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Guru
 
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For the cam gear, you'll have to clearance the inside of the timing cover.
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Posted on: 2008/2/15 3:53
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| smooth | RE:LT-4 Double Row Timing Set | ||
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Senior Guru
 
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Quote:
On a '96 I'm not sure what you might run into re/ the crank sensor. But I do know that if necessary, it can be eliminated and programmed out of the PCM. Other than that, once you eliminate the water pump drive, you can use the Cloyes 9-3145 which is under $100. It's what I have in my '95. ...Well now I'm confused. if you go to summit and check the specs for a 94-96, it sends you to the 9-3151 which is the $355 one. And in the notes section says "Timing chain has a 1/2 in. pitch. Can be installed on Generation 1 LT1, if the OptiSpark is updated to the new, second design. This will require new ignition, new front cover, and cam change to second design cam, the nose is different. The older OptiSpark" It makes no note of the crank sensor issue. Why would you even bother with this one in the first place? It sounds like you have to spend more than just the $355 to make it work.Is the one you noted (9-3145) just a heavy duty direct swap in for the 94-96 LT1? "cause if it is, sounds like a no brainer. But Summitt's site says that this part (9-3145) is for Gen I engine family and "won't clear the plastic timimg cover" ? WHAT GIVES? |
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Posted on: 2008/2/15 4:53
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Alan 2001 Navy Blue Metallic Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind. Dr.Seuss |
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| LT4BUD | RE:LT-4 Double Row Timing Set | ||
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Guru
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Thanks for the feedback guys. The Cloye's double roller works with an electric water pump. On the LT4 the best way is to remove the reluctor ring and reprogram to ignore misfire signals...PCMforLess did mine. The double roller and reluctor ring will not work together on the LT4 as they are manufactured. This is what I did, much better than the single roller and stock waterpump....plus as you have found out, you get the double roller/electric water pump for the price of the single roller set  BTW if you are not talking about a LT4 the above is not going to be true. A upgraded LT1 will be different....I don't see where you say what you are actually dealing with??? I assumed it is a 96 LT4 |
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Posted on: 2008/2/15 14:34
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| MK 82 | RE:LT-4 Double Row Timing Set | ||
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Senior Guru
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You can get the LT4 timing set with both gears and a water pump drive for about $250. I have never heard of a failure of this setup in a street application. When I do my new cam, this is what i will use. I prefer to stay with the stock water pump.
http://store.summitracing.com/partdet ... mp;N=115&autoview=sku |
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Posted on: 2008/2/16 2:43
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_________________
96 CE Roadster LT4 |
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| Notorious | RE:LT-4 Double Row Timing Set | ||
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Elite Guru
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Quote:
You can get the LT4 timing set with both gears and a water pump drive for about $250. I have never heard of a failure of this setup in a street application. When I do my new cam, this is what i will use. I prefer to stay with the stock water pump. Nothing wrong with that if that's your preference. But single roller sets will stretch more and sooner than a DR set-up, thus altering your cam timing. And if you're worried about the reliability of an electric water pump, my HD Meziere is still going strong at 32K miles and counting. And if they do ever fail, they won't puke coolant onto your opti as a mechanical pump will. This is but one of the many advantages of an EWP. |
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Posted on: 2008/2/16 3:13
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| MK 82 | RE:LT-4 Double Row Timing Set | ||
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Senior Guru
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Hah!! You're not getting me in that debate. Made up my mind and that's that!!
:thumbleft: :thumbright: |
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Posted on: 2008/2/16 5:21
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96 CE Roadster LT4 |
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| JAKE266 | RE:LT-4 Double Row Timing Set | ||
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Guru Newb
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I went with the Cloyes set from Summit and left everything else as stock; water pump, reluctor, etc.
I considered going with an electric W/P, but decided against it, even though I had already bought a Cloyes True-Roller set. I just sold the T/R to another Forum member who was happy to get it at such a super price. Jake |
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Posted on: 2008/2/16 23:00
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__________________ My son, Ryan M. Cameron, graduated from West Point on 22 May 2010! He was commissioned as a 2nd Lieutenant and I pinned on his first pair of "Butter Bars" PROUDEST DAY OF MY LIFE!! |
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| Angelsword | RE:LT-4 Double Row Timing Set | ||
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Guru Newb
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Aquavet, I’m still suffering some confusion also…I’ve seen some traffic about this same question on another forum, and I still have no clear answer.
LT4BUD has the best answer I’ve seen so far. The Meziere is ready to be installed. I hadn’t considered a new timing set until took a good look at the one I took out. About 50,000 miles on a 383 that was built in 96, when the car was new….By the way, LT4BUD, if it’s an LT4, it can only be a 96. I’ll keep ya’ll posted on what I finally do…maybe I’ll respond to the thread on that other forum..maybe. |
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Posted on: 2008/2/19 0:37
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