I installed a set earlier this year.
LS1 Lifter ?
Thread Starter
Racer
Joined: May 2004
Posts: 392
Likes: 0
From: VA
LS1 Lifter ?
I was wondering if anyone here is running these lifters on an L98, I know they are the same length with different internal valving but didn't know if those that are running them are having any ill effects and for those that are running them have you had to change any other aspects of your engine? Thanks Shawn.
Melting Slicks
Joined: Oct 2005
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From: Daleville Indiana
St. Jude Donor '08
Race Director
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From: Overland Park Kansas
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I've been chatting with LElliot via email. He mentioned LS7 lifters as an option but said (and I quote) "LS7 lifters have the pushrod cup .100 lower and need pushrod length adjusted for this.
My assumption is the rocker wouldn't sit on the valve correctly and/or your valve lift would be reduced.
LS1 lifters may not have this issue.
I'm pretty sure either option is viable -- if -- you check PR length and adjust if necessary.
My assumption is the rocker wouldn't sit on the valve correctly and/or your valve lift would be reduced.
LS1 lifters may not have this issue.
I'm pretty sure either option is viable -- if -- you check PR length and adjust if necessary.
Thread Starter
Racer
Joined: May 2004
Posts: 392
Likes: 0
From: VA
I've been chatting with LElliot via email. He mentioned LS7 lifters as an option but said (and I quote) "LS7 lifters have the pushrod cup .100 lower and need pushrod length adjusted for this.
My assumption is the rocker wouldn't sit on the valve correctly and/or your valve lift would be reduced.
LS1 lifters may not have this issue.
I'm pretty sure either option is viable -- if -- you check PR length and adjust if necessary.
My assumption is the rocker wouldn't sit on the valve correctly and/or your valve lift would be reduced.
LS1 lifters may not have this issue.
I'm pretty sure either option is viable -- if -- you check PR length and adjust if necessary.
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
"I'm think they are both the same lifters and carry the same part #."
GM #12499225 - Lifter Set- LS1-LS6-Gen III Engines -1997-2006
the new LS7 part number supersedes the others (LS1) but has different height cup
http://www.ls1tech.com/forums/showthread.php?t=857802
GM #12499225 - Lifter Set- LS1-LS6-Gen III Engines -1997-2006
the new LS7 part number supersedes the others (LS1) but has different height cup
http://www.ls1tech.com/forums/showthread.php?t=857802
Thread Starter
Racer
Joined: May 2004
Posts: 392
Likes: 0
From: VA
I just realized that SDPC sent me the wrong lifters all together, that part# on the box is the correct #12499225 LS1 lifters but inside are part#'s17122490 which are a LS2 two stage lifter, they also sent me the wrong head gasket's. I ordered FEL-PRO and received gm gaskets, the bummer is I paid over $100.00 for next day air and got the wrong crap
Thread Starter
Racer
Joined: May 2004
Posts: 392
Likes: 0
From: VA
So, I guess my next question is, has anyone used LS2 lifters in an L98, I see on SDPC website they mention that is is a 2 stage lifter. The lifters themselves look identical to my current lifters on the outside but the insides are completely different, thanks.
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Thread Starter
Racer
Joined: May 2004
Posts: 392
Likes: 0
From: VA
Update for those that care, talked to Tech @ SDPC and he informed me that the LS1 lifters have been discontinued. He said that the replacement LS7 lifters carry the same part # as the LS2 and they are both the same lifters. 
So I owe them a partial apology, although they still sent me different head gaskets.
So I owe them a partial apology, although they still sent me different head gaskets.
Last edited by Sinister87; Jul 30, 2008 at 02:01 PM.
