Hughes "retro fit" lifter not pumping up!
Your's look like mine do now after a few hours of fitting. My lift is at .553 with 1.6 rockers. With the weak checker springs I couldn't turn the push rods at full lift, I can now with clearance.It looks like Hughes clearanced the push rod openings in the heads. I can see where it looks like a CNC machined has "drilled" down into the holes. Big swirl marks. They look to be over a half inch in diameter.... or bigger. I didn't really take note of it. With checker springs on, push rod in place, valve at full lift and valve on seat I can see the push rod has no interference.
What cam are you running? My cam is only 536/540 lift.
What you think? They been clearanced?
EDIT: Just looked and what I paid gets "Extra clearancing of pushrod tunnels"
