That noise is not a hard knock like you would get from a bearing. To me it sounds like a pushrod bouncing around. Putting an exhaust on will let you hear all the noises in better detail.


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!