Solid roller lifters
Wheel diameter measured .746 / .747".
New, those wheels were .750 diameter
I've never been a fan of using a lifter in a Chrysler with a wheel smaller than .810 diameter.
Even with the same lift as a Chevy small block, the base circl is bigger on a Chrysler cam. So...the wheel has to turn more RPM for the same RPM of crank speed than a Chevy. Did that make sense?
The further around the entire lobe, the more surface feet per minute the roller has to cover. That small diameter wheel has two disadvantages. The first is roller speed is higher than with a bigger wheel. At certain speeds, you can develop a harmonic just like a tuning fork. When I see fretting on the wheel, that's the first thing I think of. You were probably at an RPM for periods of time long enough to induce the harmonic that just eats up the wheel
The second issue with the smaller wheel is you have a smaller axle. The bigger wheel allows a bigger axle. Bigger is always better in high load applications.
That's my .02 on what I'm seeing.
BTW, what I just posted was told to me by Wayne Jesel. If it wasn't for him, I'd have quit drag racing long before I did.
