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Generation III Internal Engine
1997-2006 LS1 | LS6
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Old 08-02-2003, 10:15 PM   #1
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Default Stock Lifters how good are they?

How many of you re-use your stock lifters/or new stock lifters when doing a cam swap?
How many of you went with an upgrade and to what.
What lift are they good up to, and hp/rpm?

I reused my stock lifters when I did the cam swap about 40000mi ago and they are still holding up great, granted I have the little B1 cam but they are holding. Reason I am asking is I have a new 348 Forged 9.1-1 beauty sitting in the garage and need to gather the little things to ready it for the swap.
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Old 08-03-2003, 03:07 AM   #2
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Default Re: Stock Lifters how good are they?

I'm using stock lifters (new of course) in my 409 cid. My cam has .608/.612 lift and stock lifters are holding up perfect for me!
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Old 08-03-2003, 05:10 PM   #3
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Default Re: Stock Lifters how good are they?

Reused stock lifters with my cam. Lifters looked fine.

According to GM they should be good for over 7000 rpm...read that somewhere probably GM High Tech mag.
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Old 08-03-2003, 05:27 PM   #4
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Default Re: Stock Lifters how good are they?

I bought some Comp Rs to put in my motor this week when I swap heads and cam. I'm only putting in a LS6 cam, but I figured it was cheap insurance.
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Old 08-03-2003, 10:00 PM   #5
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Default Re: Stock Lifters how good are they?

I had a Tick,Tick,tick sound comeing from my valve train which the dealer said was piston slap, I Replaced my stock lifters and pushrods during my cam swap TR pushrods and comp R lifters and now the sound is gone! P.S. stock pushrods checked all good.
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Old 09-06-2003, 12:27 PM   #6
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Default Re: Stock Lifters how good are they?

I have the same ?. I m swaping cams, and valvetrain. should I do the lifter too? and which ones should I use? I will probly get a cam 224/227 114LSA.

Is that a good blower cam?
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Old 09-06-2003, 12:52 PM   #7
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Default Re: Stock Lifters how good are they?

I reused my factory units (only had ~20K on them) but when I build my next motor, if I don't do solid roller (which I really want...) I will go with Comp Rs.....as quickWS6 said "it was cheap insurance"

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Old 09-06-2003, 02:05 PM   #8
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Default Re: Stock Lifters how good are they?

You cant easily change lifters withthe cam and valvetrain unless you have the heads off. Unlike older SBC designs, you cant get to the lifters unless you've taken the heads off.

Stock lifters are very good and in most cases make slightly less noise (they dont mind alot of preload) than aftermarket lifters.

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Old 09-06-2003, 02:07 PM   #9
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Default Re: Stock Lifters how good are they?

Oh I did have a stock lifter fail once (probably because of abuse) and it over extended, causing me to collide a valve and piston.

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Old 09-06-2003, 02:21 PM   #10
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Default Re: Stock Lifters how good are they?

so my stock lifters shoukd be sufice? I got 46K on the motor, and 15K of those miles was with the blower on.
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Old 09-06-2003, 05:27 PM   #11
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Default Re: Stock Lifters how good are they?

Assuming that stock lifers are good, at what point should stock replacements be considered? I'm at 65k miles and I'm doing a heads/cam/headers/intake project in the Spring.
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Old 09-06-2003, 07:07 PM   #12
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Default Re: Stock Lifters how good are they?

chances are the stock lifters will be fine, but i had one fail on me and it is a pain in the a$$ to change them because you have to take the heads off to do so. if i were you i'd spend the $200 and get a set of new lifters. when i got mine from thunder racing i didn't know whether to get the stock replacements or the R series. they said that the stock ones take ALOT of abuse and are very strong. but take the insurance and get new ones.
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Old 09-06-2003, 07:07 PM
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