I got a set of Harland sharp rockers.  It looks like they have a larger diameter roller and axle and they are simply much more substantial.  The adjuster screws use a larger allen wrench and the jam nuts are 12 point.  I like both of those.  They also seem easier to adjust.  I had to really develop a feel for the Dove's.  I adjust those loose so that when I tighten the jam nut it's where I want it, but with these, where you have the adjuster screw is pretty much where it stays when you tighten the nut.


Lawrenceville, GA

I sent them an Email to see if I get a reply.  In the meantime I plan to call Rocker Arm Specialty to see what they can do with a set of  1:56

I've heard of other people having issues with Dove products. Seems as though they have great ideas but not the manpower or technology to manufacture the stuff correctly. Shame, they're an Ohio company from the same area I was raised in. I'd be a lot happier if the parts had a good reputation.

Frank/Rebop

Bristol, In ( by Elkhart) 

HMM. interesting to see others had Dove rocker problems, i brought my set when they were 1st available yrs back and had pushrod cups splitting and breaking, eventually took them off , checked everything and havent been confident to reuse them.


  AussieBill            YYYY    Forever Y Block     YYYY

 Down Under, Australia

Not knowing what adjusters were used in the Dove aplication but in my building  one off roller rockers for my GMC 6 I took extra care in both the the top and bottom of the push rods. I sent a lift and an adjuster to Smith Pushrods now located in Oregon to make the proper rod especially the length. The said they knew what ball I had on the adjuster (Chrysler) and what the top of my lifter looked like but I took no chances. I'm sure they know what a Y-block lifter needs. I had the pushrods back in 3 days.......Good Luck

56 Vic, B'Ville 200 MPH Club Member, So Cal.

I have a set on my engine, thinking they were a solid item and planned on using them for the street.  Have only break in hours on the motor.   Has anyone called Dove on the problem.  These things are not $400  plus so you expect them to work.

from what i see the axel walked out,as most likely not tight enough from new. they are only serated 1 side to hold in place.had a set for 302 off ebay  and rollers wher not centered,taped the  the axel out and made a thin washer taped back with lock tight on serations and non serated end.from what  i experienced do not have any long term confidence in roller rockers made this way. some will be ok but as we see only takes 1.fome the pictures ther is no other possibility for this failure. get a set of rockers (stock with brass bushings) deleted draine pipes and never look back.Just a dum canadians failure analyses

Maybe its the angle of the valves or the rocker is actually moving ie. the spacer between rockers on the shaft. 

This could allow the roller to roll over the front/side of valve tip or side. This would stress at the weaker area as where yours have broken. I guess the material may have just fatigued just the same, a poor casting. 

 

Ahhhh That's just BS !! Give them a miss and go back to flat rockers...



"Came too close to dying to stop living now!"

You sure have had a bad run on  those rockers. Seems like you are the test mule for them! Chuck

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire