Quote:

my stock roller lifter have well over 150,000 miles and I swaped them to another roller block with a lunati roller cam .485/.485 lift and comp 901 springs 2 yrs ago


all stock valve train and not a problem yet

turns right up to 6000 rpms with no valve float

ticking time bomb?...maybe..but I bet the rest will let go first on this 88 high milage jy cop motor

runwhatyabrung



That’s right “stock” or in other words “OEM” roller lifters probably have a little more quality assurance than something you might get from an aftermarket retrofit kit; the kind people are reporting issues with.

Also, .485/.485 is conservative for a roller cam.

You prove the point well.

Wonder if we could find out what vendors the OEMs use?