Need the name of the LS4 Engineer!
Thread Starter
Launching!
Joined: Nov 2005
Posts: 255
Likes: 0
From: Idaho (for now)
Just finished up a DOD delete because of a bad DOD lifter. I have to say that it was one of the worst experiences of my life! I've done many swaps in which one would think of as difficult, but this far exceeded any of those projects! Kudos to the engineer that actually got the LS4/SS to work, but to work on.......it sucks 
!
By the way - I ended up putting in a stock 6.0L cam, LS7 Lifters, new trays, new oil pump, new cam timing sprocket (3 bolt), new GM blue springs, and had a complete valve job and resurfacing on the heads. It runs circles around what it was before! Now that's the pain is over (for now) I'm glad I did it!
!By the way - I ended up putting in a stock 6.0L cam, LS7 Lifters, new trays, new oil pump, new cam timing sprocket (3 bolt), new GM blue springs, and had a complete valve job and resurfacing on the heads. It runs circles around what it was before! Now that's the pain is over (for now) I'm glad I did it!
On The Tree
Joined: Aug 2013
Posts: 157
Likes: 1
Did your lifter just go bad one day and tickticktick? My gxp sometimes sounds fine then 2 minutes into warming up start ticking, I'll jump in give it a quick rev and it will unstick... I'm wondering how long i have till i have to do the deal. Although i was running conventional Castrol 5-30 for the 10k miles after having pistons, rings and oil pan gasket done. Just switched to Mobil 1 last week maybe it'll help.
6.0 cam from the vortec trucks (non afm) from like 03-on works? I could source that at a u pull and pay pretty damn cheap.
6.0 cam from the vortec trucks (non afm) from like 03-on works? I could source that at a u pull and pay pretty damn cheap.
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Thread Starter
Launching!
Joined: Nov 2005
Posts: 255
Likes: 0
From: Idaho (for now)
Lifter would tick a little after startup and then go away for about a month. Then the motor work start running like crap and blow blue smoke for a minute and then clear up. The car finally started running like crap constantly for a couple days so I parked it.
Did a compression check and found #6 cylinder spark plug had a lot of mucus looking oil on it. Pulled the intake, rocker covers, and valley cover and found that the intake lifter on that cylinder had collapsed and the intake runner was full of fuel. This started the whole journey.....
The cam was a pull out from a 05 6.0l truck. I went with it because it was close to the dod cam specs and I decided that I didn't want any tranny problems by adding power.
Did a compression check and found #6 cylinder spark plug had a lot of mucus looking oil on it. Pulled the intake, rocker covers, and valley cover and found that the intake lifter on that cylinder had collapsed and the intake runner was full of fuel. This started the whole journey.....
The cam was a pull out from a 05 6.0l truck. I went with it because it was close to the dod cam specs and I decided that I didn't want any tranny problems by adding power.
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