So as the title says pretty sure I've got a bad lifter. Ticks when cold and dissapear once warm. First time it happened was yesterday and I'm going to throw in some mystery and hope it quiets her down. But I know I'm going to wanna just swap em all out anyway, at 94k miles I think it should get done lol anyway wondering if anyone suggests a certain brand over oem? Also, do the LS4 use the LS7 lifters? Anything else recommended I do while I'm there? Thanks guys!

 

I can say for sure that ls4 and ls7 lifters are not interchangeable. As far as I know, all of the displacement on demand / AFM LS engines use a funky looking lifter. There is a picture of one in the link below:

http://www.nathanbittinger.com/fieroaddiction/ls4-engine

In order to use regular LS lifters, you'd need to delete the DOD system.

 

Ah that's disappointing to hear lol so is deleting the dod system and tuning it out the same thing? Or what consists of deleting it?

 

Nope tuning and deleting are two different things. I'm gonna do a ls2 intake and probably change other stuff then, but first I need to finish payments lol.

 

I hear ya man I need to hurry up and pay mine off too. Got my wedding coming up and I'm applying for my first mortgage soon too lol

But so what consists of deleting the dod?

 

I've never personally done it, but I believe new lifters (I believe you only have to replace the ones that shut down), lifter trays, valley cover, and tuning (you don't want the computer to try to activate it if it's not functional). I'm sure you have to do something with the opsu also, perhaps a block off or relocate or something.

IMO the real reason people do this swap is to be able to run a decent sized aftermarket cam. The stock lifters limit how big of a cam you can run, and the ls engines respond really well to a beefy cam swap.

 

You hit it dead on bumpin lol.