So I'm doing an LM7 swap in my '93 300zx, and decided to pick up an ls1 cam on the cheap just to get it running (spun a cam bearing). I've gathered that I need 7.4 pushrods, stock rockers, ls2 timing chain/gear/sprocket, and stock lifters, but can't get my head around how to choose springs. I *think* 2002 ls6 yellow springs are the best bet for this setup, but this is my first time doing a cam swap. Any information is much appreciated.

 

Go with a set of Pac 1218 springs, good for .600 lift

 

The ls1 cam is also the lq4/9 so you should actually be ok with stock springs, if you want more just for peace of mind then the ls6 springs would be fine!!

 

Thanks guys I went with some LS6 springs from GM.