Roller rockers. Why not s.a.?
Thread Starter
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
Roller rockers. Why not s.a.?
I'm just wondering why it is usually suggested when changing over too a full roller rocker to install guide plates and hardened push rods rather than going with self aligning? Is there an advantage of one over the other?
Thread Starter
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
I'm just trying to figure out what the advantage running hardened pushrods and guide plates is over self aligning rocker arms is. I mean staying with self aligning rocker arms requires only the purchase of rocker arms, so why go the other way?
Come on some one out there has to have a reason why they spent the money to buy all those parts instead of just the arms.
Come on some one out there has to have a reason why they spent the money to buy all those parts instead of just the arms.
Race Director
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
A few months ago Popular HotRodding/Hot Rod had an article stating that there was an advantage to running S/A rockers. I don't remember what they said, will see if I can find the article.
One advantage of non S/A rockers would be you can get N/A's in a 7/16 stud size opposed to the 3/8 studs for the S/A.
As far as cost, S/A rockers are quite a bit more expensive than the non S/A's. The cost will probably be about equal with buying the pushrods and guide plates.
One advantage of non S/A rockers would be you can get N/A's in a 7/16 stud size opposed to the 3/8 studs for the S/A.
As far as cost, S/A rockers are quite a bit more expensive than the non S/A's. The cost will probably be about equal with buying the pushrods and guide plates.
Safety Car
Joined: Apr 2003
Posts: 3,793
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From: VA
Originally Posted by ultraviolet70
I'm just wondering why it is usually suggested when changing over too a full roller rocker to install guide plates and hardened push rods rather than going with self aligning? Is there an advantage of one over the other?
Le Mans Master
Joined: Sep 2006
Posts: 6,050
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From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
Rockers
There is less friction with S/A rockers. but the other thing is :
using guide plates raises the stud up the thickness of the guide plate so there is the advantage of using longer pushrods to realign your rollers in the center of the valve tip if you're using poly locks and the stud seems too short for your comfort level.
using guide plates raises the stud up the thickness of the guide plate so there is the advantage of using longer pushrods to realign your rollers in the center of the valve tip if you're using poly locks and the stud seems too short for your comfort level.
