Non Self Align
Thread Starter
Melting Slicks
Joined: Feb 2008
Posts: 3,286
Likes: 6
From: Palm Beach
Non Self Align
Is there any advantage to running non-self aligning rockers?
Say Comp Pro Mags vs Crane aluminum.
Will the NSA rev higher?
How long have self aligning rockers been around?
Say Comp Pro Mags vs Crane aluminum.
Will the NSA rev higher?
How long have self aligning rockers been around?
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
If you are SA it will cost $ to convert. I think SA's came in 1988 with the 113's but not positive. I stayed with SA, less cost overall, less work. Yes, I'm lazy. If you have a L98 you won't rev high enough to matter.
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
self-aligning rocker arms are a BUNCH cheaper to install than guide plates and hardened stem pushrods = bigger GM profit.
SA rockers will function satisfactorily until "new car" warranty expires and failure soon thereafter (high loadings/wear at valve stem/rocker arm guide nub interface causes ridges/ lifter adjustment upset) will increase replacement parts volume = bigger GM profit, and dealerships enjoy increased labor billing.
NON-self aligning rockers will last much longer and can be used in "solid lifter" application (using a feeler gauge on SA rockers "can" be done, albeit with difficulty)
SA rockers will function satisfactorily until "new car" warranty expires and failure soon thereafter (high loadings/wear at valve stem/rocker arm guide nub interface causes ridges/ lifter adjustment upset) will increase replacement parts volume = bigger GM profit, and dealerships enjoy increased labor billing.
NON-self aligning rockers will last much longer and can be used in "solid lifter" application (using a feeler gauge on SA rockers "can" be done, albeit with difficulty)
Thread Starter
Melting Slicks
Joined: Feb 2008
Posts: 3,286
Likes: 6
From: Palm Beach
Lloyd Elliot suggested that if I was going to change my stock LT4 lifters, That I use Comp Pro Mags.
Lloyd wrote:
"If you are changing rockers, I would step up to some non self aligning Comp Pro Mags (Comp 1302-16) and Trick flow 30400623-8 guide plates. These are steel and flex a lot less than the alu rockers but since they are steel, they can be made a lot slimmer in a few areas and end up weighing less than the aluminum rockers but MUCH stronger."
Lloyd wrote:
"If you are changing rockers, I would step up to some non self aligning Comp Pro Mags (Comp 1302-16) and Trick flow 30400623-8 guide plates. These are steel and flex a lot less than the alu rockers but since they are steel, they can be made a lot slimmer in a few areas and end up weighing less than the aluminum rockers but MUCH stronger."
Melting Slicks
Joined: Oct 2006
Posts: 2,238
Likes: 10
From: College Station TX
Lloyd Elliot suggested that if I was going to change my stock LT4 lifters, That I use Comp Pro Mags.
Lloyd wrote:
"If you are changing rockers, I would step up to some non self aligning Comp Pro Mags (Comp 1302-16) and Trick flow 30400623-8 guide plates. These are steel and flex a lot less than the alu rockers but since they are steel, they can be made a lot slimmer in a few areas and end up weighing less than the aluminum rockers but MUCH stronger."
Lloyd wrote:
"If you are changing rockers, I would step up to some non self aligning Comp Pro Mags (Comp 1302-16) and Trick flow 30400623-8 guide plates. These are steel and flex a lot less than the alu rockers but since they are steel, they can be made a lot slimmer in a few areas and end up weighing less than the aluminum rockers but MUCH stronger."
