ticking at high rpm

IQ52 said

Plenty of oil coming out of the pushrods? Is this a Magnum engine? If so, hard to put 273 rockers on a Magnum.

Click to expand...

not a magnum..72 block 318... can i just swap the rocker arm assembly or do I need the 273 push rods as well? How do you preload a hydraulic lifter/rocker arm assembly?