Replacing lifters
Thread Starter
Burning Brakes
Joined: Jun 2006
Posts: 933
Likes: 0
From: St. Paul MN
Replacing lifters
I'm doing a head/cam swap this winter (Comp Cams XR281HR 228/230 571/573 112 sep and Dart Pro 1 heads). The car has around 40k miles on it but since I'm in there I might as well replace the lifters. I don't plan on racing the car at the track much. Any suggestions on the lifters I should go with?
Team Owner
Joined: Mar 2001
Posts: 25,889
Likes: 7
From: Virginia Beach
CI 3-5-6-7-8 Veteran
Cadillac Racing lifters... go to www.ls1tech.com and search for them.
FWIW I did my cam swap at 70,000 in January... no issues 10k later and 3 HPDEs.
But... I agree that if you're in there you might as well but better ones in.
FWIW I did my cam swap at 70,000 in January... no issues 10k later and 3 HPDEs.
But... I agree that if you're in there you might as well but better ones in.
Drifting
Joined: Jul 2002
Posts: 1,329
Likes: 8
From: Corpus Christi Tx.
CTVS Rollers
Hydraulic roller racing lifters developed for the CTSV Cadillac Race Team.
GM part #88958689.
Good for steady 8500 RPM as used in LS7 racing engines.
These will fit LTx and LSx engines.
http://gmpartsdirect.com/
GM PART # 88958689
CATEGORY: Engine Valve Lifter
PACK QTY: 1
CORE CHARGE: $0.00
GM LIST: $302.00
OUR PRICE: $219.86
DESCRIPTION: LS Racing Roller Lifter Kit
set of 16
tested to 8000 RPM
same dimensions as production
improved dynamics and stability at high RPM's
GM part #88958689.
Good for steady 8500 RPM as used in LS7 racing engines.
These will fit LTx and LSx engines.
http://gmpartsdirect.com/
GM PART # 88958689
CATEGORY: Engine Valve Lifter
PACK QTY: 1
CORE CHARGE: $0.00
GM LIST: $302.00
OUR PRICE: $219.86
DESCRIPTION: LS Racing Roller Lifter Kit
set of 16
tested to 8000 RPM
same dimensions as production
improved dynamics and stability at high RPM's
Last edited by ICUALL; Dec 7, 2007 at 05:19 PM.
Thread Starter
Burning Brakes
Joined: Jun 2006
Posts: 933
Likes: 0
From: St. Paul MN
I hope those aren't overkill as I don't ever plan on reaching such high rpms. I can get the Comp Cams OEM style lifters for less than half price of those....what do you think about the comp cams lifters?
Uneducated autodidact
Joined: Feb 2001
Posts: 5,413
Likes: 252
From: West of the Sabine, Texas
The comps are oem replacements, I'm using them on my build (383). I agree the caddy lifters are good but for the price are overkill on my street setup. JMO, of course.
Tech Contributor
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From: Dyer, IN
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Thread Starter
Burning Brakes
Joined: Jun 2006
Posts: 933
Likes: 0
From: St. Paul MN
Comp Cams looks to offer 2 types of hydraulic lifters:
1) 850-16 High energy lifters
2) 875-16 Pro Magnum Lifters
For those of you running the comp cams lifters, which are you running and why?
1) 850-16 High energy lifters
2) 875-16 Pro Magnum Lifters
For those of you running the comp cams lifters, which are you running and why?
Thread Starter
Burning Brakes
Joined: Jun 2006
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From: St. Paul MN
Race Director
Joined: Mar 2004
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From: Fort Wayne IN
2025 C5 of the Year Finalist - Modified
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Stay away from Comp's "R" series lifters unless you're VERY Good at setting the valve lash. They're touchy, and notorious for failure if they're too loose.
Melting Slicks
Joined: Jun 2006
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From: Redondo Beach Ca
Race Director
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From: Fort Wayne IN
2025 C5 of the Year Finalist - Modified
C5 of Year Finalist (performance mods) 2019
2017 C5 of the Year Finalist
2016 C5 of the Year Finalist
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Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Do not use the 875's also known as "Comp R's". Read the fine print, they require a pre-load hot of 0.002" - 0.004" and an adjustable valve train. Crane recently introduced a new lifter that is close to Morel's quality, have you looked into those?
Thread Starter
Burning Brakes
Joined: Jun 2006
Posts: 933
Likes: 0
From: St. Paul MN
I've found the following would work with my engine (98):
Crane 10530-16 - Crane Cams Hydraulic Roller Lifters
But I haven't found much people running them. Most likely, I'll go with "Caddy" lifters or to save a few bucks the Comp OE lifters. Since there really isn't much difference in price I'll probably go with the "Caddy" lifters unless I discover that they too require a preload and adjustable valve train. Someone on the thread already said they don't so I'm probably Ok there...unless someone says otherwise?
Crane 10530-16 - Crane Cams Hydraulic Roller Lifters
But I haven't found much people running them. Most likely, I'll go with "Caddy" lifters or to save a few bucks the Comp OE lifters. Since there really isn't much difference in price I'll probably go with the "Caddy" lifters unless I discover that they too require a preload and adjustable valve train. Someone on the thread already said they don't so I'm probably Ok there...unless someone says otherwise?
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I'm going with the Caddy lifters. They are suppose to be designed to work better with aftermarket cams with different base circles than stock GM. The oiling hole is suppose to be drilled in a better area to make sure the lifter gets a better supply of oil.
BC
BC
Team Owner
Joined: Mar 1999
Posts: 22,025
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From: At the beach in little Rhody
There are quite a few running the Caddy lifters now so getting input should be easy. Usually its been more an issue of getting them, a short time ago they actually ran out because they were so popular.
