roller lifters which ones
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Instructor
Joined: Aug 2008
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From: lehighvalley P.A.
roller lifters which ones
Going to be installing a h/c over the winter in a 2000 cpe.
I hear that the ls7 are good, ctsv are good, comp cams have good ones etc. Any ideas which one to use. curt
I hear that the ls7 are good, ctsv are good, comp cams have good ones etc. Any ideas which one to use. curt
Former Vendor
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From: Birmingham, AL www.hinsonsupercars.com 205-909-9402
Tech Contributor
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From: Dyer, IN
The LS7 lifters are fine. The Cadillac racing are really only needed for very high rpm setups.
Can't go wrong with LS7's
Team Owner
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From: At the beach in little Rhody
There have been a number of failures on the Cadillac lifters, which seems to be a function of the valve train setup (spring loads, valve weight, etc.). If you are looking for the top shelf, they are Morel and the Crane billet. Everything else is a step below but many are running LS7 without problems. It really depends on your proposed valve train setup.
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From: Dyer, IN
There have been a number of failures on the Cadillac lifters, which seems to be a function of the valve train setup (spring loads, valve weight, etc.). If you are looking for the top shelf, they are Morel and the Crane billet. Everything else is a step below but many are running LS7 without problems. It really depends on your proposed valve train setup.
Team Owner
Joined: Mar 1999
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From: At the beach in little Rhody
Not really, depends on the setup. Many are now running very high spring rates and seat loads to control larger and heavier valves. Higher cam ramp rates contribute to lifter loads as well. Comparing materials, extended RPM is not the only criterion I would use in choosing a better lifter. Also, both Morel and Crane billet are designed to sit lower in the bore due to the smaller base circle of aftermarket cams, the LS7's are not.
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Le Mans Master
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From: Farmington CT
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bingo, LS1,2,3,6,7 are one and the same
www.gmpartshouse.com for the best price/service; ordered a bunch of sets from Gene
www.gmpartshouse.com for the best price/service; ordered a bunch of sets from Gene
Tech Contributor
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From: Dyer, IN
Not really, depends on the setup. Many are now running very high spring rates and seat loads to control larger and heavier valves. Higher cam ramp rates contribute to lifter loads as well. Comparing materials, extended RPM is not the only criterion I would use in choosing a better lifter. Also, both Morel and Crane billet are designed to sit lower in the bore due to the smaller base circle of aftermarket cams, the LS7's are not.
) a couple of months ago on LS1Tech, I figure you must have installed them in your motor. I still don't know what anyone gains by using these lifters for a street car, and I doubt anyone can show me in reliability or on a dyno (for a non race car). Hell, I'm still waiting for someone to post the performance gain from adjustable rockers.
Team Owner
Joined: Mar 1999
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From: At the beach in little Rhody
Well, after reading how you "pumped up" morel lifters (pun intended ) a couple of months ago on LS1Tech, I figure you must have installed them in your motor. I still don't know what anyone gains by using these lifters for a street car, and I doubt anyone can show me in reliability or on a dyno (for a non race car). Hell, I'm still waiting for someone to post the performance gain from adjustable rockers.
) a couple of months ago on LS1Tech, I figure you must have installed them in your motor. I still don't know what anyone gains by using these lifters for a street car, and I doubt anyone can show me in reliability or on a dyno (for a non race car). Hell, I'm still waiting for someone to post the performance gain from adjustable rockers.
Tech Contributor
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From: Dyer, IN
I don't view them as a performance gain (not much to be gained by lifters) but rather a reliability increase when higher valve spring forces, faster ramp rates and higher lift (smaller base circle) cams are used. I used them in my old setup and for my new setup just completed I had them rebuilt with new rollers and bearings (another feature of Morels is they are fully rebuildable).
Melting Slicks
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From: Sicamous BC
I had issues with my Cadillac Racing Lifters right out of box, the problem is visual. My attraction was the design difference which is suppose to help reduce valve train noise, don't ask me what that was I don't remember....something to with the position of a oiling hole. The second was of course the high RPM stability when auto X & don't want to shift...combined with the Ultra lite rockers. I would do the CRL again just be a bit more prudent with out of box inspection.
Pro
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From: 707 CA
I had issues with my Cadillac Racing Lifters right out of box, the problem is visual. My attraction was the design difference which is suppose to help reduce valve train noise, don't ask me what that was I don't remember....something to with the position of a oiling hole. The second was of course the high RPM stability when auto X & don't want to shift...combined with the Ultra lite rockers. I would do the CRL again just be a bit more prudent with out of box inspection.
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bingo, LS1,2,3,6,7 are one and the same
www.gmpartshouse.com for the best price/service; ordered a bunch of sets from Gene
www.gmpartshouse.com for the best price/service; ordered a bunch of sets from Gene
are you saying that the LS1,2,3,6,,&7 lifters are all the same? as in the same part number?
or that the LS7 lifters are a direct (and reccomended) replacement for any LSx?
Thanks
Former Vendor
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From: Birmingham, AL www.hinsonsupercars.com 205-909-9402
The LS7 lifters are a direct replacement for all LSx engines. If you have some miles on your current ones and your doing heads & cam, it's a good idea to replace them.
Le Mans Master
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From: Farmington CT
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