• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

ras roller rockers

stage3

FBBO Gold Member
FBBO Gold Member
Local time
11:49 AM
Joined
Mar 3, 2016
Messages
1,125
Reaction score
1,319
Location
california
bought some new rockers today for the upcoming 426 wedge motor currently at the machine shop..there from RAS..carrol Shelby used the ford versions on a cobra with 950 lbs spring pressure according to them ,,SS bushed with smith brothers adjusters..generic photo from the web..have used them before..bulletproof..
4377854-RAS.jpg
 
RAS; Rocker Arms Specialists
they are located in Redding Ca. now no longer in Anderson Ca.
They are now "Rocker Arms Unlimited"
employees took it over in 2012 IIRC, still same great products

http://www.rockerarms.com/pages/about.html
 
heres a better pic of these rockers...they now have inventory after 2+ years...
ras rockers.jpg
 
001.JPG
002.JPG
003.JPG
just received the rockers...very nice..bronze bushed..with smith brothers adjusters..
 
Look pretty damned robust. Me likey. Congrats!

Is there a choice of adjuster style, or is it ball only?

Inventory was always a little iffy with them. Glad to see them back on their feet... again.
 
Look nice, how would these compare to the “big dogs” like t&d, jesel and harland sharp?
 
Look pretty damned robust. Me likey. Congrats!

Is there a choice of adjuster style, or is it ball only?

Inventory was always a little iffy with them. Glad to see them back on their feet... again.
inventory was good last week...u can have either ball or cup..they suggested ball for oiling reasons..which is what I have...retains some oil at all times..cnc machined stainless steel..
 
Look nice, how would these compare to the “big dogs” like t&d, jesel and harland sharp?
all those I believe r aluminum rockers...these r cnc'ed SS with bronze guides..probably not as lite as those but much stronger and reliable..just make sure the oil has plenty of zinc'phourus....
 
these new 1.6 ratio RAS rockers r going to change my lift and duration .. how will that change my final numbers..both lift and duration,,and at .050..blurry pic..lift is .650,,.651,,,,.296--.303,,,@ .050.263--.270,,,108 center..based upon 1.05 stock rockers..
my cam.jpg
 
They look nice. RAU's website is crap, what do these cost? Part number?
 
these new 1.6 ratio RAS rockers r going to change my lift and duration .. how will that change my final numbers..both lift and duration,,and at .050..blurry pic..lift is .650,,.651,,,,.296--.303,,,@ .050.263--.270,,,108 center..based upon 1.05 stock rockers..
View attachment 587554
Same cam I’m running, lift will come in around .693/.694 not sure how the 1.6 effects the duration numbers someone will chime in.
 
Same cam I’m running, lift will come in around .693/.694 not sure how the 1.6 effects the duration numbers someone will chime in.
according to RAS,,when using 1.6 ratio arms..because of the lash , u will end up at a true .650ish lift.. if the arms add appx .033 lift above the stock 1.5 ratio,,,minus .028 lash gap,that would be .655,,,duration on the other hand is a completely different formula not currently at my fingertips..
 
Auto Transport Service
Back
Top