LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

There may be a new lifter option

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Old 02-09-2007, 09:11 AM
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There may be a new lifter option

Surprisingly, a search turned up nothing.

GM HD Lifters used in the Cadillac Racing Program -- these are designed similar to Morels with the lowered oiling hole, and are extremely durable. They're fairly new, but a lot of guys in the LSx world are already using them with great success. I'm trying to verify if they're a drop in assembly for the LTx motors right now, but given that the Comp R's and Morels are already the same PN used for LS and LT motors, I would presume that they are a direct swap.

Just throwing that out as there may be a reliable option than Comp R's for about half of the cost of Morels. I believe Scoggin Dickey has these for about $217 a set right now.
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Old 02-09-2007, 09:23 AM
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Ive heard about them but didnt knwo they were that cheap. That would be a way better option then spending 400+ on morels or Cranes oem's.
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Old 02-09-2007, 10:10 AM
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Originally Posted by MEAN LT1
Ive heard about them but didnt knwo they were that cheap. That would be a way better option then spending 400+ on morels or Cranes oem's.
Exactly what I was thinking, if they are every bit as good as the Morels, then that is a pretty good deal.
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Old 02-09-2007, 10:11 AM
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Damn good find...

Subscribing to see the outcome but don't see why they wouldn't work considering I heard that the lifters are interchangable between LTx and LSx applications...
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Old 02-09-2007, 10:29 AM
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What about the comp cams high energy ones??
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Old 02-09-2007, 10:30 AM
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Dang man nice find, hopefully this turns out to be the budget alternative to Morels
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Old 02-09-2007, 10:33 AM
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Good find indeed! I have a set of the newer Comp-R's I need to ditch.
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Old 02-09-2007, 11:34 AM
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My friend has a 96 Formula and we put a set of lifters in it from a 2000 Z28 with no problems at all, so I am sure they will work.
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Old 02-09-2007, 11:48 AM
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Just make sure to check your pushrod length if they fit. I'm guessing they will if they work in the LS1 motors, but they may be a different length which will change your geometry.
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Old 02-09-2007, 11:51 AM
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I thought they were alot more expensive than that....I was thinking they were $500.00 you have a part # for ref.
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Old 02-09-2007, 12:08 PM
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Originally Posted by mdacton
I thought they were alot more expensive than that....I was thinking they were $500.00 you have a part # for ref.

Ditto..... get a part #
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Old 02-09-2007, 12:11 PM
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I have them in my car, I paid $230 shipped from SDPC.
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Old 02-09-2007, 12:24 PM
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Originally Posted by speed_demon24
I have them in my car, I paid $230 shipped from SDPC.
Yeah? So, what's the part number, like people are asking?
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Old 02-09-2007, 12:25 PM
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http://www.ls1tech.com/forums/showthread.php?t=580686
It's buried somewhere in there
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Old 02-09-2007, 12:29 PM
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GMPP 88958689 $220 a set

They do fit. They still need the spider in the lifter valvey which I hate but they do work.

These lifters have a ceramic internals rather than the steel parts to lighten them up. They should be more than enough for the limits of the stock ECU in terms of RPM. I had a good discussion with one of GM's racaing engineers about them, they are a pretty kick *** piece.

Bret
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