Pro-form
There was a thread recently titled something like "Proform vs. Comp" and the poster was torn between using Proform or Comp rockers. The general consensus is to go with the tried and true Comp rockers.
I recommend Comp 1305-16 1.6 NSA 7/16" full roller rockers. They will require ARP 7/16" rocker arm studs and guideplates (I use TrickFlow guideplates).
I recommend Comp 1305-16 1.6 NSA 7/16" full roller rockers. They will require ARP 7/16" rocker arm studs and guideplates (I use TrickFlow guideplates).
I remember reading about one guy who had a set and his exact words were:
"I wouldn't put them in my lawnmower"
But then again, some people have tried them and said they are great. You can get Scorpion Roller Rockers on Ebay for around $230 shipped - Made in the USA.
"I wouldn't put them in my lawnmower"
But then again, some people have tried them and said they are great. You can get Scorpion Roller Rockers on Ebay for around $230 shipped - Made in the USA.
Last edited by Counted Out; Jul 17, 2009 at 06:00 PM.
Trending Topics
TECH Resident
Joined: Jul 2009
Posts: 772
Likes: 0
From: Bahrain
LE suggested them to me to use with his 218/224 cam, thats why I asked about them on here. Maybe they work will a small cam like that, but he grinds a hell of lift on it for a cam of its duration.
I am going for Pro Magnums full rollers, and paying the difference on the proven product. But trust me, Made in China does not mean crap quality anymore. It can be made with the same alloy as Crane uses in their Gold rockers, but be cheaper because of China having cheaper labour. It works in your favor as a customer.
Good luck.
I am going for Pro Magnums full rollers, and paying the difference on the proven product. But trust me, Made in China does not mean crap quality anymore. It can be made with the same alloy as Crane uses in their Gold rockers, but be cheaper because of China having cheaper labour. It works in your favor as a customer.
Good luck.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
TECH Veteran
Joined: Dec 2008
Posts: 4,146
Likes: 62
From: Little Rock, AR
LE suggested them to me to use with his 218/224 cam, thats why I asked about them on here. Maybe they work will a small cam like that, but he grinds a hell of lift on it for a cam of its duration.
I am going for Pro Magnums full rollers, and paying the difference on the proven product. But trust me, Made in China does not mean crap quality anymore. It can be made with the same alloy as Crane uses in their Gold rockers, but be cheaper because of China having cheaper labour. It works in your favor as a customer.
Good luck.
I am going for Pro Magnums full rollers, and paying the difference on the proven product. But trust me, Made in China does not mean crap quality anymore. It can be made with the same alloy as Crane uses in their Gold rockers, but be cheaper because of China having cheaper labour. It works in your favor as a customer.
Good luck.
TECH Regular
Joined: Oct 2008
Posts: 430
Likes: 0
From: Bahrain
i recently bought the summit Aluminum RRs for like $200 ,,havent installed them yet but heard some good news bout them in other threads i read in the past..i believe they are the Scorpions RRs sold as a summit brand,they look very identical
TECH Resident
Joined: Jul 2009
Posts: 772
Likes: 0
From: Bahrain
One thing I like about the Proforms is the side stops on the roller tips to help keep the rocker arm on the valve tip.
Thats something that the Pro Magnums don't have, and neither do the Ultra Pro Magnums have them. Thats making me consider getting the GM 1.6s that come with the LT4 kit.
Thats something that the Pro Magnums don't have, and neither do the Ultra Pro Magnums have them. Thats making me consider getting the GM 1.6s that come with the LT4 kit.
TECH Veteran
Joined: Dec 2008
Posts: 4,146
Likes: 62
From: Little Rock, AR
One thing I like about the Proforms is the side stops on the roller tips to help keep the rocker arm on the valve tip.
Thats something that the Pro Magnums don't have, and neither do the Ultra Pro Magnums have them. Thats making me consider getting the GM 1.6s that come with the LT4 kit.
Thats something that the Pro Magnums don't have, and neither do the Ultra Pro Magnums have them. Thats making me consider getting the GM 1.6s that come with the LT4 kit.
I've read too many threads about the Proforms destructing and filling the engine with metal to be confident they are safe to use. Then again, some people like them.
TECH Resident
Joined: Jul 2009
Posts: 772
Likes: 0
From: Bahrain
Umm...probably because they are SA rockers? I haven't checked the UPMs, but the Pro Mags can be had in SA (with the "side stops") or NSA (without). NSAs are the better choice for frequent high RPM use.
I've read too many threads about the Proforms destructing and filling the engine with metal to be confident they are safe to use. Then again, some people like them.
I've read too many threads about the Proforms destructing and filling the engine with metal to be confident they are safe to use. Then again, some people like them.
I would prefer having the side stops, just for the peace of mind.
I know its because they are self aligning. But I even checked the Comp Cams site, and they don't advertise the Pro Mags or Ultras with side stops, even though they are self aligning. Or maybe its just the picture.
I would prefer having the side stops, just for the peace of mind.
I would prefer having the side stops, just for the peace of mind.
TECH Resident
Joined: Jul 2009
Posts: 772
Likes: 0
From: Bahrain
Of course they must have them to stay on the valve. I did not say they don't, did I?
They use different part numbers for them there though - that's pretty stupid.
TECH Veteran
Joined: Dec 2008
Posts: 4,146
Likes: 62
From: Little Rock, AR
http://www.compcams.com/technical/Ca...106-07/269.pdf