ok i just tore down my '65 352 and pulled one of the lifters to see if they are soild or hydraulic. there is no hole where the push rod seats for oil and the push rods have no hole going through them for oil either but on the sides of the lifter there are holes are these lifters solid or not i know from my experience with chevy that if they have a hole where the pushrod seats then they are hydraulic.
thanks
Tyler