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Thread: LS7 or CTS-VR lifters?
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09-01-2012, 08:51 AM #1
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Black/ Silver- 98 TA WS6/ 01 C5 Corvette
LS7 or CTS-VR lifters?
I am thinking about replacing my lifters since I had to take my heads off to replace the gaskets. Which would you guys replace the stock lifters with? Also with either of these lifters would I need a different size pushrod? I saw on ls1tech that there was some mention that for proper preload with the ls7 lifters you need a different sized pushrod.
1998 Trans Am WS6 - Phantom
421 CI LQ9, Tick Performance Custom Cam, TFS 255cc LS3 heads, Kooks 2" LT headers, Kooks 3" True Duals w/ high flow cats, FTP 104 lid, Speed Density Tune, 4" silicon tube, LS6 VCT, FAST 102 Intake, NW 102 TB, Oil Catch Can, SLP Bilstein Shocks w/ Vogtland Springs, CTS-V 4-piston Calipers w/C6 Z06 rotors, Stainless Steel Brake Lines, R1 concepts premium rotors, Hawk HP+ brake pads, VFN WSQ Hood, C5-R timing chain, SLP oil pump, E85 tune, Walbro 450 fuel pump, Deatschwerkz 95# injectors, Breathless performance headlights, Frost Tune, !HVAC.
(Coming Soon) BMR DSL, UMI TQ Arm
421 LQ9 14.8:1 on E85 Build/
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09-01-2012, 12:22 PM #2
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2001 3.8 Black - sold- 2000 SS Black M6
you do for LS7, i think its a ~.1 difference, ours are 7.55, those need 7.45.....i think
CST-VR i dont know anything about, but if youre doing lifters, you might as well do pushrods too
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09-01-2012, 12:33 PM #3
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09-01-2012, 01:38 PM #4
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09-01-2012, 03:53 PM #5
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2001 3.8 Black - sold- 2000 SS Black M6
like i said...."i think" lol
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09-01-2012, 04:27 PM #6
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09-02-2012, 04:04 PM #7
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I have the cts-vr lifters in my ls1. I run it frequently to 7500 rpm and have not had any issues. I'm guessing about 3000 miles so far.
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09-02-2012, 07:16 PM #8
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2001 3.8 Black - sold- 2000 SS Black M6
at 7500 RPMs im worried about other stuff than lifters, lol
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09-02-2012, 08:10 PM #9
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09-05-2012, 04:53 PM #10
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2001 3.8 Black - sold- 2000 SS Black M6
LS2 lifter trays are a pretty standard swap when doing lifters, theyre only like $40 a set
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09-05-2012, 05:26 PM #11
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I don't know if caddy lifters are the same height as stock ls1. I measured preload for my setup. These lifters are mostly for high rpm. You will need a lot of other parts before you can take advantage of them. Hp is an expensive addiction
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09-06-2012, 08:41 AM #12
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Black/ Silver- 98 TA WS6/ 01 C5 Corvette
I think I will do ls7 lifters for now. I will get a pushrod measuring tool.
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09-06-2012, 02:16 PM #13
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- 2002 Camaro Z/28 Pewter
This is the best thing to do. Stock length on PR's is indeed 7.4", ls7 lifters are a little taller but usally still do fall within preload spec (.080) but it is good to measure to be sure. As far as cts-v lifters go imo they're not worth it unless you are going 7500+ and doing it for an extended period of time. recently people have also have the cadlialc lifters failing, idk if it has since been fixed but I would just stay with ls7 for pretty much any non-track build
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