Ryan at shady dell has a CNC program for that block to make a roller lifter fit
I saw that on his website but by time I drove out there twice I will have it done by hand. A lot cheaper too 😂
His "CNC" program is a joke, He runs an end mill straight down the valley knocking off the inboard head bolt bosses and shortening the lifter bosses. You still need to hand grind the valley walls for clearance.
I wound up getting an R3 block from a very good customer and I wound up doing a proper CNC profiling program that follows the contours of the block--It worked and looked really trick but it was not cheap. J.Rob
