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l92 top end swap write up

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Old 10-28-2009, 08:42 PM
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Originally Posted by terryk
Do the stock LQ4 iron head exhaust manifolds fit the L92 heads?
yes they will, but it would not be recommended the exhaust side of the l92s is weak in comparison to the intake side, so you would be better off not chokin the l92s with stock manifolds, but they will bolt up
Any lsx block manifolds will bolt to any of the lsx heads,l92s and ls7s included
Old 11-04-2009, 07:46 AM
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here the firsttest drive with the top end and new clutch. Cant really get on it till i break in the clutch, still have my old tune so i have to get started on that today.

http://www.youtube.com/watch?v=PQM2TRKNkTs
Old 01-26-2010, 05:26 PM
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well i crushed a lifter so haed to pull everything apart again and put ls7s in, but ill let everyone know times when its nice out and i have the tune pinned
Old 01-27-2010, 09:20 AM
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Originally Posted by 06WT
well i crushed a lifter so haed to pull everything apart again and put ls7s in, but ill let everyone know times when its nice out and i have the tune pinned
if you're swapping out to LS7 lifters . . . you'll need to run 7.350 push rods.

The lifter cup is "taller" vs the LS1,2 truck lifters.
Old 07-27-2010, 09:02 PM
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Any updates?
Old 07-27-2010, 09:52 PM
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Damnit, I just read this entire thread and then left with an ending of broken lifter and no update, lol.

How did you crush a lifter?
Old 07-28-2010, 06:04 PM
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it sounded a bit like a rattle box on the startup vid. lifters are cheap ins while your already in the motor. what size cam you got?
Old 07-28-2010, 07:22 PM
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Likewaie- just read thru this whole thread to find a lifter that went south. The suspense is killing me, I wanna see some numbers..........
Old 07-28-2010, 07:32 PM
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he dynoed it bak in may guys:
https://www.performancetrucks.net/fo...d.php?t=462328
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