Reply to "bolt-down style roller rockers"

Randy Malik at R.M. Competition has fully adjustable bolt-down aluminum
roller rockers manufactured by Harland Sharp to his specs which are dedicated
Ford 351C/351M/400/429/460 rocker dimensions. Randy says they will withstand
spring pressures in excess of 475 pounds open and over 625 pounds open when
using the optional Jesel bolts. These rockers are not the old style flat top
Harland Sharp rockers and are shaped more like the Crane Gold units and are
available in 1.73:1 and 1.8:1 ratios. Rather than mill and drill the 351C
dyno mule open chamber iron heads, I purchased a set. That was several years
back but Randy's email at the time was

rmcomprandy@yahoo.com

IIRC, the Ford Motorsport C351 rockers require shimming for any sort of
adjustment. I have that style on my 5.0L Mustang. They are fine for set
and forget hydraulics but, for a solid lifter cam, you'll want the fully
adjustable variety. Crane made the C351 rockers and I think they were
dropped when Crane went out of business. Crane is back in business but
I don't see them on Summit's site.

Dan Jones