Pushrod length?
Thread Starter
Teching In
Joined: Feb 2025
Posts: 4
Likes: 0
Pushrod length? Im Getting a 600 Lift cam (PRT # - SUM-8728R1 )
On a stock block and crank, (2002 4.8 vortec) Stock aluminum heads, What size pushrods do i need? I found a set of 7.4 inch on FB with rocker arms includes, Will these work?
The springs with the kit dont matter i have some coming alongside the cam. Just wondering about the rods and rockers
FB DESCRIPTION:Ls Stock rockers, 7.4" chromoly pushrods, Summit Racing Beehive Springs. 130 lb. Seat pressure 1.290 o.d., handle up to .650 lift. Just broke in. Came out of my 5.3 gm vortec. Always maintained with no hard driving and properly broke in. The Beehive are best for harmonics so the springs won't "dance" on you. I believe 06-13 4.8, 5.3, 6.0, and 6.2
Thanks guys! im new to forums and LS engines but ive been watching for a little while.
On a stock block and crank, (2002 4.8 vortec) Stock aluminum heads, What size pushrods do i need? I found a set of 7.4 inch on FB with rocker arms includes, Will these work?
The springs with the kit dont matter i have some coming alongside the cam. Just wondering about the rods and rockers
FB DESCRIPTION:Ls Stock rockers, 7.4" chromoly pushrods, Summit Racing Beehive Springs. 130 lb. Seat pressure 1.290 o.d., handle up to .650 lift. Just broke in. Came out of my 5.3 gm vortec. Always maintained with no hard driving and properly broke in. The Beehive are best for harmonics so the springs won't "dance" on you. I believe 06-13 4.8, 5.3, 6.0, and 6.2
Thanks guys! im new to forums and LS engines but ive been watching for a little while.
TECH Addict
Joined: Dec 2017
Posts: 2,177
Likes: 968
What size pushrods do i need?
The Beehive are best for harmonics so the springs won't "dance" on you.
TECH Addict
Joined: Dec 2017
Posts: 2,177
Likes: 968
Oh that...
I thought he asked what size he needed. Which is why I quoted that.
As far as length, he needs exactly the same length as everyone else needs: whatever length that he sets his adjustable push rod to that exactly takes up all the end play without depressing the lifter plunger at all, plus his desired preload.
I thought he asked what size he needed. Which is why I quoted that.
As far as length, he needs exactly the same length as everyone else needs: whatever length that he sets his adjustable push rod to that exactly takes up all the end play without depressing the lifter plunger at all, plus his desired preload.
