Ford Racing now has a retrofit lifter kit for rollers now to be placed in non-roller blocks.
M-6500-T58 -- they are brand new.(2010 debut part)
( in my best Steve Martin; The Ford Racing 2010 Catalog is here !!!,
The Ford Racing 2010 Catalog is here !!!, The Ford Racing 2010 Catalog is here !!!)
This is a great part development -as the reduced base circle cams are $$$$.