Which roller rockers to purchase??
Thread Starter
Racer
Joined: Aug 2010
Posts: 327
Likes: 0
From: Texarkana AR
Which roller rockers to purchase??
Ok so I've decided to go ahead and upgrade my stock rockers to full roller rockers to help my valvetrain geometry. Just wanted to see which rockers you guys recommend. And keep in mind, I'm trying to not break the bank in the process. Lol. Any help is appreciated.
Former Vendor
Joined: May 2005
Posts: 3,749
Likes: 4
From: Valencia Ca
I'm not trying to be argumentative, but why not use the factory rocker arms with a trunnion upgrade?
Safety Car
Joined: Jun 1999
Posts: 3,570
Likes: 3
From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas
Former Vendor
Joined: May 2005
Posts: 3,749
Likes: 4
From: Valencia Ca
For me, a roller rocker arm must add strength and be light enough on the tip to not inhibit valve control....
So far, the only roller rocker arm replacements to do this (ones that I've tested or have knowledge of) are Crane, Crower, Jesel, and T&D. With the exception of the Crane, all are shaft systems.
So far, the only roller rocker arm replacements to do this (ones that I've tested or have knowledge of) are Crane, Crower, Jesel, and T&D. With the exception of the Crane, all are shaft systems.
Racer
Joined: Oct 2007
Posts: 263
Likes: 7
From: Brownsville Texas
Roller Rocker
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Safety Car
Joined: Jun 1999
Posts: 3,570
Likes: 3
From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas
For me, a roller rocker arm must add strength and be light enough on the tip to not inhibit valve control....
So far, the only roller rocker arm replacements to do this (ones that I've tested or have knowledge of) are Crane, Crower, Jesel, and T&D. With the exception of the Crane, all are shaft systems.
So far, the only roller rocker arm replacements to do this (ones that I've tested or have knowledge of) are Crane, Crower, Jesel, and T&D. With the exception of the Crane, all are shaft systems.
All of those seem to have a great reputation. But they are more expensive. Have you used YT?
I thought Crane is out of business?
Safety Car
Joined: Jan 2004
Posts: 4,974
Likes: 14
From: Pinellas Park Fl
St. Jude Donor '08-'09 & '12, '14
prw-usa.com
buy from jobberwarehouse.com
Stud mount rockers
pt#0234611
PRW 15-5ph Stainless Steel Rocker Arms, GM Gen III, LS1 5.7L 1997-08, 1.7 x 3/8", Complete Kit: Includes 16 - PRW 15-5ph stainless steel full roller, stud mount rockers, precision ground needle roller trunion bearings, PRW ROCKER-LOC adjusters, studs & 5/16" guide plates
pt#0234612 same but in a 1.8 ratio
After determining proper pushrod length you adjust them like the Gen II small block.
Shaft
pt#3334611
PQ Series Aluminum Shaft Rocker Arm System, GM LS1, Gen III, 1.7 Ratio, Platinum Series Shaft Rocker Arm System, including steel pedestal stand, 8 pairs of shaft-mount rockers with adjustable cup-style valve lash adjusters, shims, and other related fasteners and hardware
pt#3334612 same but in 1.8 these may need to have the pushrod hole in the head enlongated to prevent the pushrod from touching. I have a set of these for sale, if desired. I didn't feel like pulling the heads, maybe in the future when I change the heads.
buy from jobberwarehouse.com
Stud mount rockers
pt#0234611
PRW 15-5ph Stainless Steel Rocker Arms, GM Gen III, LS1 5.7L 1997-08, 1.7 x 3/8", Complete Kit: Includes 16 - PRW 15-5ph stainless steel full roller, stud mount rockers, precision ground needle roller trunion bearings, PRW ROCKER-LOC adjusters, studs & 5/16" guide plates
pt#0234612 same but in a 1.8 ratio
After determining proper pushrod length you adjust them like the Gen II small block.
Shaft
pt#3334611
PQ Series Aluminum Shaft Rocker Arm System, GM LS1, Gen III, 1.7 Ratio, Platinum Series Shaft Rocker Arm System, including steel pedestal stand, 8 pairs of shaft-mount rockers with adjustable cup-style valve lash adjusters, shims, and other related fasteners and hardware
pt#3334612 same but in 1.8 these may need to have the pushrod hole in the head enlongated to prevent the pushrod from touching. I have a set of these for sale, if desired. I didn't feel like pulling the heads, maybe in the future when I change the heads.
Former Vendor
Joined: May 2005
Posts: 3,749
Likes: 4
From: Valencia Ca
Yes, the shaft systems are not inexpensive but they are the best way to go. You will not give up valve control and any rocker arm geometry issues become a thing of the past (although the factory rocker is very accurate)
I haven't used the newest YT's - I saw them at the PRI show and stopped to discuss their new offset rockers for the LS3 & LS7 - I believe the fellow repping them there was Roger Vinci (highly respected and knowledgeable) and he swore that they worked out the valve control. Certainly worth a try.
Crane has been acquired but I am not sure about the rocker arms.
I haven't used the newest YT's - I saw them at the PRI show and stopped to discuss their new offset rockers for the LS3 & LS7 - I believe the fellow repping them there was Roger Vinci (highly respected and knowledgeable) and he swore that they worked out the valve control. Certainly worth a try.
Crane has been acquired but I am not sure about the rocker arms.
Safety Car
Joined: Jan 2004
Posts: 4,974
Likes: 14
From: Pinellas Park Fl
St. Jude Donor '08-'09 & '12, '14
Safety Car
Joined: Jan 2004
Posts: 4,974
Likes: 14
From: Pinellas Park Fl
St. Jude Donor '08-'09 & '12, '14
I haven't used the newest YT's - I saw them at the PRI show and stopped to discuss their new offset rockers for the LS3 & LS7 - I believe the fellow repping them there was Roger Vinci (highly respected and knowledgeable) and he swore that they worked out the valve control. Certainly worth a try.
Safety Car
Joined: Jun 1999
Posts: 3,570
Likes: 3
From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas
Yes, the shaft systems are not inexpensive but they are the best way to go. You will not give up valve control and any rocker arm geometry issues become a thing of the past (although the factory rocker is very accurate)
I haven't used the newest YT's - I saw them at the PRI show and stopped to discuss their new offset rockers for the LS3 & LS7 - I believe the fellow repping them there was Roger Vinci (highly respected and knowledgeable) and he swore that they worked out the valve control. Certainly worth a try.
Crane has been acquired but I am not sure about the rocker arms.
I haven't used the newest YT's - I saw them at the PRI show and stopped to discuss their new offset rockers for the LS3 & LS7 - I believe the fellow repping them there was Roger Vinci (highly respected and knowledgeable) and he swore that they worked out the valve control. Certainly worth a try.
Crane has been acquired but I am not sure about the rocker arms.
Thread Starter
Racer
Joined: Aug 2010
Posts: 327
Likes: 0
From: Texarkana AR
The only reason why I Decided to go with roller rockers instead of just doing the trunion upgrade was due to everyone on here saying how bad my valvetrain geometry was off with my high lift cam. Cam is 644/651. What would you recommend?
Former Vendor
Joined: May 2005
Posts: 3,749
Likes: 4
From: Valencia Ca
I would use a set of Crane Gold, 1.7:1 LS1 adjustable rocker arms. They will come with all the pieces needed including studs,guide plates, pushrods and of course the rocker arms.
Others may work and be reliable but the Cranes I guarantee will carry the RPM band completely and not "nose over".
Thread Starter
Racer
Joined: Aug 2010
Posts: 327
Likes: 0
From: Texarkana AR
That is high lift and a roller tipped, adjustable roller rocker arm would be ideal.
I would use a set of Crane Gold, 1.7:1 LS1 adjustable rocker arms. They will come with all the pieces needed including studs,guide plates, pushrods and of course the rocker arms.
Others may work and be reliable but the Cranes I guarantee will carry the RPM band completely and not "nose over".
I would use a set of Crane Gold, 1.7:1 LS1 adjustable rocker arms. They will come with all the pieces needed including studs,guide plates, pushrods and of course the rocker arms.
Others may work and be reliable but the Cranes I guarantee will carry the RPM band completely and not "nose over".
