On a 216, that sound can come from a sticking valve causing a pushrod to bounce around because of excess clearance. On your motor, I believe that there are springs on top of the lifters and I don't know how it sounds if one of them fails.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!