Roller Rocker Arms


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By GregDove - 17 Years Ago
I have a 312 y block ... can you install roller rocker on it and if you can what is the advantage in doing so?
By yehaabill - 17 Years Ago
Y-Guy Greg        Welcome to the site. The "Y" shaft rockers are very

               efficient, especially for street use, if they are in good condition.

                       The roller's are better for high RPM use and I'm sure

               some of the others, on the site,will chime in and give you their

               2-cents worth.

                       It's ironic, but one of the manufactors of "Y" rollers

               is DOVE.               Hope this helps.

                                             Bill

By charliemccraney - 17 Years Ago
You can install roller rockers. They will be a higher ratio and should increase upper end power. On a stock build you probably won't feel much difference, if any at all. The roller tip will reduce friction and reduce valve guide wear. Dove, and The Rocker Arm Specialist are two companies I know of which make roller rockers for the Y.
By Ted - 17 Years Ago

Previous link on the subject:

http://www.y-blocksforever.com/forums/Topic6082-5-1.aspx

 

Dove Manufacturing roller tipped rockers

 

 

Rocker Arm Specialist roller tipped rocker arm setup
By ejstith - 17 Years Ago
Damn! Those are pretty .. !!! Pricey I'll bet ... ?
By mctim64 - 17 Years Ago
Hey Ted,

What springs and retainers are you running there?

By GREENBIRD56 - 17 Years Ago
Tim - This is one of those Y-Block "speed secrets" - I went digging through my files and found a reference note that says those are:

"Comp Cams #26915 "Beehive" springs - with #787-16 retainers. Requires trimming at the guide boss."  

I don't know if this link is still good -

www.compcams.com/beehive

A couple of end users have told me they are good for several hundred extra rev's without excessive seat pressure. Beehive springs have some interesting engineering aspects - like reducing the retainer size and weight - and variable harmonics coil by coil.

By mctim64 - 17 Years Ago
No secret, they have been using "Beehive" or Conical srings on the factory stuff for years, I just haven't seen it on a "Y" yet. The retainers look like late Vortec.
By GREENBIRD56 - 17 Years Ago
Yeah - the beehives are factory in my LS1 Z but I hadn't thought about there being a selection of them available for other app's  - until Ted showed me the set-up above.
By mctim64 - 17 Years Ago
Because of what you said, less weight better revs, the US factory guys put these on most everything now. I don't see as much on the Jap stuff.
By Ted - 17 Years Ago
mctim64 (12/1/2008)
Hey Ted, What springs and retainers are you running there?

As Steve mentions, the pictured valve springs and retainers are the Comp Cams Beehive pieces.  Here’s a different shot of them along with a link to a prior discussion.

 

http://www.y-blocksforever.com/forums/Topic3129-3-1.aspx