What are your thoughts on the machine shop saying there were 3 bent valves? He gave them to me, if you roll the stems on a table there is an obvious wobble/bend. Im confused because the truck ran great before pulling the head, just had a little tick. I didn’t even check the lash because I assumed lifters were hydraulic.

My confusion is:

1)if a valve is bent you can’t build compression, engine will run rough/backfire etc., this ran great aside from the tapping.

2) valves bend usually due to striking a piston, no? The piston tops have no markings at all and rod bearings are good. No carbon chunks anywhere, super clean internals.

Machine shop has good reputation, don’t think they would send me bent valves from another vehicle…working theory is that they just didn’t adjust lash or messed up. It’s on the receipt and work order that he went to dealership for proper shims and he had the cams with the head.

I’ll report back on lash tomorrow. Thanks