02-26-2017, 01:37 AM | #1 |
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Join Date: Jan 2001
Location: Orem, Utah
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Vortec Timing Set
Quick question:
I'm building a 5.7 Vortec to drop in my Blazer. I've got a Ram Jet 350 / HT 383 cam I'm putting in it and I'm using a steel timing cover and an 8" balancer (it's going to be carbed with an HEI distributor). Is there any reason this timing set won't work with it: https://www.amazon.com/Competition-C...VM11EHNME5YRH8 The timing cover and balancer are Summit's house brand: https://www.summitracing.com/parts/SUM-G3200B-K https://www.summitracing.com/parts/SUM-161358 Thanks! |
02-26-2017, 08:46 AM | #2 |
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Re: Vortec Timing Set
It's been a while so I could be wrong but I don't think that timing chain set will bolt to the camshaft.
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02-26-2017, 10:53 AM | #3 |
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Re: Vortec Timing Set
Thanks. That's what I was wondering - if it's just the plastic timing cover that requires the use of a specific chain.
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02-26-2017, 11:59 AM | #4 |
motor exploder
Join Date: Mar 2009
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Re: Vortec Timing Set
The GM factory roller cams use a cam retainer plate to hold the cam in the block and the bolt pattern for the cam gear is smaller that factory non-roller cam or retro fit aftermarket rollers. The cam has a stepped nose on the cam gear end of it. The Cloyes Gear part numbers for the 85-up non Vortec roller cam engines (like the L98 TPI engines) are 9-1146 (better), 9-3146 (best) for their performance double roller sets. The '96-88 Vortec (L31) single roller performance sets for roller cams are 9-1157 (better) & 9-3157 (best) if using the plastic timing cover.
If you have any questions call the Cloyes Tech line 479 646 1662 and ask for Mike Senia. he's the product development/tech guy there. Way more accurate info getting it from the source.
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Adam 1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac 1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's 1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac 2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80 2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac Use the SEARCH function on this forum - it is your friend!! Last edited by BossHogg69; 02-26-2017 at 12:07 PM. |
02-26-2017, 01:17 PM | #5 |
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Re: Vortec Timing Set
Thanks!
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02-27-2017, 06:15 PM | #6 |
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Re: Vortec Timing Set
Mike is no longer at Cloyes. I spoke with Cody, and this is what he said:
If it is a factory style roller, and you are using the factory thrust plate, then you can use the 9-1145 double roller set. If it is what they call a retrofit roller cam, it will have the old style cam nose and will require the old style timing set 9-1100. Now I'm more confused. The 9-1146 says it's a true roller for SBC, just like the 9-1145 does. I'm not building a race engine, so is there a good reason to spend $25 more on the timing set? |
02-28-2017, 09:53 PM | #7 | |
motor exploder
Join Date: Mar 2009
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Re: Vortec Timing Set
Quote:
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Adam 1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac 1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's 1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac 2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80 2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac Use the SEARCH function on this forum - it is your friend!! |
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