LS7 lifters
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Last edited by slt200mph; Sep 17, 2012 at 09:27 AM.
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The LS7 lifters magically became an "upgrade" on the internet, I have never seen any actual data to support anything about them being an "upgrade" other than people assumed it because they were put in the LS7.
Far as failures it seems like a more RECENT development. Companies are always trying to save a buck be it the OEM or whomever they have making the parts so it is possible something changed along the way and 5yo stuff was fine but new stuff can have a genuinely higher failure rate.
So it is great that the above poster has a lot of miles on them but that doesn't necessarily mean the set you but today will work just as well, especially not when you look at the number of reported lifter failures we are seeing.
On the LT1 side of things everyone jumped on this bandwagon too even though nobody was having trouble with stock ones, those same guys who bought new "because new was better" are experiencing their first lifter failures with 500mile LS7 lifters when the 150K mile LT1 lifters never gave them trouble and STILL they tend to believe it was an upgrade.
Far as failures it seems like a more RECENT development. Companies are always trying to save a buck be it the OEM or whomever they have making the parts so it is possible something changed along the way and 5yo stuff was fine but new stuff can have a genuinely higher failure rate.
So it is great that the above poster has a lot of miles on them but that doesn't necessarily mean the set you but today will work just as well, especially not when you look at the number of reported lifter failures we are seeing.
On the LT1 side of things everyone jumped on this bandwagon too even though nobody was having trouble with stock ones, those same guys who bought new "because new was better" are experiencing their first lifter failures with 500mile LS7 lifters when the 150K mile LT1 lifters never gave them trouble and STILL they tend to believe it was an upgrade.
I have worked in a Chevy dealer for the last 10 years. I have seen 1000's of vehicles with over 100,000 or 200,000 miles on them with no lifter problems. Keep in mind that there are a number of suppliers of LS engine parts besides GM. Another thing to consider is some do not have as high a quality parts as others. So the sorce of the parts is another thing that enters into the equation. I do know that lifter failure is a very very low percentage when it comes to the LS series engine repairs. They are very reliable to say the least. As always everything is always over hyped on the internet.
Last edited by slt200mph; Sep 17, 2012 at 09:53 AM.
My opinion is they were never any sort of upgrade just another OEM lifter, and that maybe quality was recently reduced and while that might be just fine on the production vehicles GM intends them for it could show up when guys beat on them with aftermarket cams.
We are on the same page sir. The stock GM lifter will work just fine for most street applications. I think that if you are going to run a verfy aggresive cam with a lift of over .600 a aftermarket high performance lifter would be the correct part to use. My cams have always had lift in the .590's with durations no higher than 234 degrees. So for that appliucation the stock lifter and rocker arm has worked out very well for me. Thanks for your input on the subject.
Staging Lane
Joined: May 2012
Posts: 85
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From: Tri-Cities, TN
We are on the same page sir. The stock GM lifter will work just fine for most street applications. I think that if you are going to run a verfy aggresive cam with a lift of over .600 a aftermarket high performance lifter would be the correct part to use. My cams have always had lift in the .590's with durations no higher than 234 degrees. So for that appliucation the stock lifter and rocker arm has worked out very well for me. Thanks for your input on the subject.
Lol i ended up ordering them from WS6 store for $129 shipped along with Ls2 lifter trays.
But im running a Comp 228R 114LSA (.588 lift symmetrical. 277 duration) with PAC 1218 Valve springs, stock rockers and stock 7.4 pushrods
But im running a Comp 228R 114LSA (.588 lift symmetrical. 277 duration) with PAC 1218 Valve springs, stock rockers and stock 7.4 pushrods
+1 on pushrods. Factory units ate total ****, you really need a better set, and with the 228R cam, you are gonna need a longer than stock pushrod anyway. The base circle of your new cam os smaller than factory.
LS7 lifters are an upgrade for LS1s. That is what GM changed them. With proper pushrod length,ls2 trays and medium to small cams they are reliable and a good upgrade.
Get them from Ws6 store.
Get them from Ws6 store.
Or SDPC(scoggin Dickey).....many people overlook them as a vendor. I am in Italy, and they ship to my APO at great prices much cheaper than most vendors. and their customer service is top notch.
Tsp 228r cam has aggresive xer lobes and can harm stock oem components such as the stock rockers and stock pushrods. Do yourself a favor and get a comp trunion upgrade and hardened pushrods it will save you money down the road.