I'm going to order the LS6 heads and cam pkg from TSP w/ the 233/239 cam. i know that they recommend running a 7.350 on the ms4's to give it a little more needed clearance. i'm wondering if it would be wise, with my cam choice being somewhat smaller than the ms4, to run 7.375 to give my valvetrain a little more clearance or make it snug w/ the standard 7.400? any input is appreciated. thanks

james

 

You need a longer pushrod with a cam setup not a shorter one. The base circle of the aftermarket cam is smaller, thus requiring the longer rod to maintain proper preload.

 

ok, maybe i misinterpreted the info on the pushrods. so it's probably wiser to stick with the 7.400's then. thanks for the info brad8266.

 

7.400 or 7.425, either will work

 

we'll TSP doesn't have an option over 7.400, so i guess im going with those!

 

comp makes rods longer than 7.4

 

are they sold through tsp? and would it be your opinion for me to run some longer than 7.400?