Originally Posted by zachm89

I've searched around a bit and only come across one thread similar to the info Im looking for. I picked up a clapped out LQ4 for cheap and gutted it, had it punched out to 4.065 and installed factory LS3 pistons and rods and had the stock LQ4 crank cleaned up. Going to be replacing the LQ9 thats currently in my 01 SS with the new motor (LQ9 spun a cam bearing). I already have a set of 243 heads on the shelf, and an ls6 intake thats on the car now, along with a Tick Polluter V2 cam and factory LS3 head gaskets. Not going to mill the heads so I dont run into any PTV issues with the flat top LS3 pistons but plan on getting them cleaned up and a good valve job since theyre used. Now I am starting to wonder if I should part ways with the 243s, LS6 intake and Polluter cam and go with an LS3 style top end as well. Car is a 6 speed with factory 3.42s for now but the rear is need of a rebuild anyway so I will most likely end up going with 4.10s when that happens. Might see a drag strip a few times a year but mostly will be street driving and occasional commutes to work (about 40 miles one way). Also running 1-7/8" headers with custom ory and a 4" exhaust dumped at the rear bumper. Im pretty set on keeping everything I currently have, but have been wondering if the LS3 top end with a properly specced cam would work better for my needs. Looking forward to hearing what people smarter than myself have to say on the matter and thanks in advance!

Originally Posted by buktooth

for those of you that did this 6.2L out of a LQ4 did you balance the rotating assy or just replace the 6.2L pistons and send it?