5.7 roller rockers 93 gmc new motor

[sleddinskeeter]

Hows it goin guys? good well what do you think roller rockers or not ? I am torn are they worth doin labor wise I mean the money isn't the issue. Just wondering if a guy will benefit from this upgrade? They claim 15 to 20 horse from comps magnum rollers but I'm not that gullible. Although the theory is sound. Less resistance = More efficiency lets here what you think. Thanks

[MT-2500]

How many miles on your engine?
Roller lifters are good but.
If it is not broke I would not try to fix it.
Have you checked to see if you may already have them?

Not sure what a change over would cost.

If it was me I would leave it like it is and just save my money for a brand new GM good wrench engine when needed.

[sleddinskeeter]

412 miles on motor brand new rebuilt with rv cam and eddy intake,headers,chipped.k&n,cat back exhaust soon to be custom all the way back no cat. so do you think its worth the effort of heck with it?? thanks for the reply

[acewelderman]

Are you ready to pull the heads and have the machine work done??
Needs new screw in studs and new heavy springs too.
Not sure what it will cost but I would guess 300.00 for the work.
Going to need new head gaskets and a bolt kit another 200.00
Plus the cost of the rockers...Getting costly!
Can you even run the cam you have???I dont think so.
Maybe look into a whole kit price(cam lifters pushrods rockers)
I dont think you will even notice you have new rockers unless you convert the whole thing .THEN you WILL get the gains they are talking about.
Good luck.

[iroc343]

I think the question is whether he will notice a performance gain by installing roller rocker arms, not roller lifters. Even though roller rockers are a definate mechanical improvement over the original stamped units. I would have to say that you wouldn't notice any performance gain by their installation.

[sleddinskeeter]

yea I am looking at roller rockers not a roller cam swap. I just believe the gains may be false because in my experience. You cannot bolt on 12 horsepower for 200.00 dollars hell sometimes you cant bolt on 2 horsepower for that amount. I was just wondering if someone has done this and seen this huge gain from an hour bolt on project??