Roller Rocker Question
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Roller Rocker Question
OK, here we go.
I just picked up a Super Ram and some Valve covers from forum members. It is my intent to get them powder coated before installation.
Since I already have the intake and VCs off, I figure the easiest thing to do is replace the rockers with rollers.
I am looking at 1.6 rollers for the stock heads, perhaps the Crane Gold.
Here's my questions.
1. The stock springs, any problem going to 1.6 ratio with those springs?
2. Do I need to spend $300 on Cranes? Is there a less expensive, just as good alternitive?
3. I assume the stock heads have 3/8s studs. Should I, and can I, put in 7/16ths studs?
TIA.
I just picked up a Super Ram and some Valve covers from forum members. It is my intent to get them powder coated before installation.
Since I already have the intake and VCs off, I figure the easiest thing to do is replace the rockers with rollers.
I am looking at 1.6 rollers for the stock heads, perhaps the Crane Gold.
Here's my questions.
1. The stock springs, any problem going to 1.6 ratio with those springs?
2. Do I need to spend $300 on Cranes? Is there a less expensive, just as good alternitive?
3. I assume the stock heads have 3/8s studs. Should I, and can I, put in 7/16ths studs?
TIA.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
The question is, do I need Crane golds at $300 or can I get away with "other" for less than $200?
If I NEED the Cranes I'll get the Cranes. I just don't think with the way I'm putting this together I NEED them, and I'm looking for validation on that point.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
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
OK, here we go.
I just picked up a Super Ram and some Valve covers from forum members. It is my intent to get them powder coated before installation.
Since I already have the intake and VCs off, I figure the easiest thing to do is replace the rockers with rollers.
I am looking at 1.6 rollers for the stock heads, perhaps the Crane Gold.
Here's my questions.
1. The stock springs, any problem going to 1.6 ratio with those springs?
2. Do I need to spend $300 on Cranes? Is there a less expensive, just as good alternitive?
3. I assume the stock heads have 3/8s studs. Should I, and can I, put in 7/16ths studs?
TIA.
I just picked up a Super Ram and some Valve covers from forum members. It is my intent to get them powder coated before installation.
Since I already have the intake and VCs off, I figure the easiest thing to do is replace the rockers with rollers.
I am looking at 1.6 rollers for the stock heads, perhaps the Crane Gold.
Here's my questions.
1. The stock springs, any problem going to 1.6 ratio with those springs?
2. Do I need to spend $300 on Cranes? Is there a less expensive, just as good alternitive?
3. I assume the stock heads have 3/8s studs. Should I, and can I, put in 7/16ths studs?
TIA.
Melting Slicks
Joined: Jun 2004
Posts: 3,253
Likes: 2
From: Castro Valley CA
I used the LT4 springs when I switched to the Crane Gold Roller rockers. Can't comment on other brands, but there is no noise and quality components. I did install new pushrods at the same time.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
I know, stupid question....
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Race Director
Joined: Jun 2004
Posts: 13,942
Likes: 705
From: WI
Bigger studs are nice as is a full roller, but they would help the most at higher RPM. I would recomend the larger stud and a full roller for going more RPM then stock but becareful of to much with the stock short block.
If you get the LT4 springs I think they handle lift to .525 so if you want to do a large cam in the future make sure that lift is enough for you or you will be buying springs twice.
Instructor
Joined: Aug 2007
Posts: 175
Likes: 0
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
As mentioned no need to remove the heads, some guys like the "rope trick" to prevent the valves from dropping if you don't have access to an air compressor. Details should be easy to find with the search function.
Like others I used the LT4 springs with Crane Gold rockers, great buy and work well.
Like others I used the LT4 springs with Crane Gold rockers, great buy and work well.
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
All you have to do is pull the plugs and VC's. A spring compressor can be rented. No reason to change things that are good.
Drifting
Joined: Oct 2006
Posts: 1,934
Likes: 3
From: Citrus Heights California
I guess the Crane Gold are the best RR. I have the Comp Pro Magnums. I got the kit that came with new pushrods. I have no complaints and they are a little cheaper. I would upgrade the springs at the same time.
Pro
Joined: Jan 2004
Posts: 707
Likes: 0
From: Syracuse Utah
Yes you need new springs as the LT1 springs are very close to binding. LT4 springs are cheap and will do the job. I'd get new retainers, keys, and shims too. Nothing else needs to be changed out but you will probably want new oil seals as this is the time to do it and they are worn out. Whatever the rockers, make sure they are self-aligning.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Yes you need new springs as the LT1 springs are very close to binding. LT4 springs are cheap and will do the job. I'd get new retainers, keys, and shims too. Nothing else needs to be changed out but you will probably want new oil seals as this is the time to do it and they are worn out. Whatever the rockers, make sure they are self-aligning.
Anyway, thanks guys, I think I have enough to go on.
The car has 30K miles and isn't burning a drop of oil, so I'm not going to mess with the seals.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
So is it consensus that I can't go wrong with Comp Pro Magnums or CC Pro Mags? Or are those one in the same? I don't want to be chep, I want to do it right, but not throw money away on brand name, Crane, if there's no reason to.
Thanks...
Thanks...
Drifting
Joined: Oct 2006
Posts: 1,934
Likes: 3
From: Citrus Heights California
Here's are links to compare. I got the roller tips and they work great and are quiet. They give additional lift and about 15 more chp on a
L98. I'm not sure if the full rollers are much better. I was told that the stock push rods are short and flex. That's why I got the Comp Pro Magnum kit, it comes with better pushrods.
http://store.summitracing.com/partde...6&autoview=sku
http://store.summitracing.com/partde...6&autoview=sku
L98. I'm not sure if the full rollers are much better. I was told that the stock push rods are short and flex. That's why I got the Comp Pro Magnum kit, it comes with better pushrods.
http://store.summitracing.com/partde...6&autoview=sku
http://store.summitracing.com/partde...6&autoview=sku
Last edited by Kool88vette; Aug 12, 2007 at 09:20 PM.