Im building a twin turbo 6.0 sclb 2500 and i am wondering, does the ls1,6,2 have the same rod length and clearences as the lq4. i have searched for the specs to no avail. i am still wanting to keep the stock rod length if at all possible. also another question would be. what would be the recomended spring rate for the valve spring on 12 p.s.i of boost. also i have heard rumors about the rod bolts and wrist pins becoming weak when in turbo apps, which is normal in all motors. opinions and suggestions will be greatly appreciated.

Thanks-
Ben

 

the rods should all have the same length. springs depends on the cam your going to run, if your going to run something similar to the ls6 cam you can run the ls6 springs. In all honesty for just 12 lbs of boost that can easily be done with a single turbo unless you want twins for the bling factor. you have to buy 2 of everything, it can cost alot unless you have the money to blow on it.

 

i have several turbos just laying around honestly. and tired of them taking up space so might as well put them to use. (i will be flipping the manifolds for the turbo app.) i was looking at several comp cams.

BTW comp has the Cam Quest 6 program free to download right now on their website!!!

part numbers/ grind...
54-414-11, XR296HR
54-416-11, XR273HR
54-426-11, XR275HR

for the first cam has
216.0 intake 220.0 exaust duration at .050-inch
.525 intake
.532 exaust
114 lobe centerline
112 intake centerline

and this brings me to my next question will this require fly cutting my pistons. still would like to keep a 9.5:1 comperssion ratio

 

lets see some pictures/vids of your super stock tractor!

 

ill post up some vids and pics in (the truck stop) topic area under general dicussion for ya

 

that cam wont need fly cutting. theres .600 plus cams with stock pistons and no flycutting

 

thanks for the info. goin to order 54-444-11 cam today .581/.588 114