Roller Lifter's ?

ou812 said
I helped in the design of the 8043-16 lifters Comp now sells. Depending on the lobe size, you can run these lifters with no block mods at all!
They drop in, pushrod oil, pressure fed bearings and deep skirts.
I will usually drop the base circle on the cam when ordering if I'm using a .430 lobe or larger.
I can also sell you those lifters cheaper than ANYONE on the planet!
Brian

Brian,
As I said, I saw a set of these for $100 on another site. He couldn't use them for some reason and was just getting rid of them cheap. Would they work with "X" heads and standard ball/cup rods? I am assuming the pushrods would have to be changed but I am unsure. I was thinking somewhere in the .500 range of total lift for a cam.

Jack