Roller rocker install..really that easy???
Thread Starter
Racer
Joined: Oct 2007
Posts: 359
Likes: 0
From: Long Island NY
Roller rocker install..really that easy???
So i just gotta unbolt the stock ones and bolt the new rockers (self aligning) in and torque em to 22ft-lbs and im done? This is what i heard ...no lash adjustment or anything? Seems to easy, im used to setting lash on first gen smallblocks, this ls1 motor is still new to me....what gives?
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Sort of, almost, kind of. Since the fixed fulcrum roller rockers have their wipe pattern established by their placement relative to the valve stem, you have to check the wipe pattern first. Once checked, then you need to measure for pushrod length (lifter preload). Once that is complete, then depending on which rocker, there is a method to installation. For example, the Yella Terra's should have the respective cylinder brought to top of fire and then the rockers can be installed by tightening down to the prescribed torque value for that cylinder only.
Last edited by vettenuts; Nov 26, 2007 at 06:13 PM.
Melting Slicks
Joined: Sep 2003
Posts: 2,458
Likes: 105
From: Northville Michigan
So i just gotta unbolt the stock ones and bolt the new rockers (self aligning) in and torque em to 22ft-lbs and im done? This is what i heard ...no lash adjustment or anything? Seems to easy, im used to setting lash on first gen smallblocks, this ls1 motor is still new to me....what gives?
The roller rockers that are just bolt in replacement don't deliver any significant improvement in power or reduced friction.
Other, such as Crane's 1.8:1 Poly-Matrix bearing aluminum roller rocker arms are more complex to install, require matching springs, retainers, guide plates, spring seats, etc., but they deliver increases in power and reductions in friction.
Good luck with your decision.
