If you have more than .0010 lifter to lifter bore clearances, most of the ones I've measured are all over .0025 , you don't need EDM oiling for that block or camshaft Use the money you save from that on some other better part
I run the Comp solid flat tappet EDM lifters and they have the hole at the top where the pushrod goes if you want to use hollow pushrods for oiling. I do not use it as I just use the stock valvetrain oiling and my solid pushrods plug the lifter hole. Ron
Re: Edm hydraulic lifter,with pushrod oiling - 06/09/2012:49 AM
Originally Posted by csk
Call Howards cams
I have Howard's solid EDM lifters in my car and they are AMC type lifters with pushrod oiling. They were a good lifter and I only lost about 10 PSI oil pressure but I think it's a good trade off putting the oil where it needs to go when idling on the street.
if the hole in the hydraulic tappet is underneath the tappet oil reservoir (which a hydraulic tappet has to have and maintain) and it's "constantly" leaking how's it supposed to work? wouldn't the tappet collapse everytime the engine is shut off? just asking.