Quote Originally Posted by dlotraf33 View Post
Pat, the Manley valve I used was new old stock. Not sure what the valves were in the heads I got. Based on what I saw of the springs and the way they were shimmed, the valve guide that was too long, keeper hit top of seal, I'm pretty sure this guy just got the cheapest stainless valves he could get, when I looked the pro comp were the cheapest. I put some Manley exhaust valves in, and replaced the springs with known ones, re shimmed and checked valve train geometry, I figured I'd trust the valves. It's a street motor, and I don't really rev it much anyway. And the way those heads were set up that valve may have been cracked when I got them. I looked em all over, but may have been damaged and didn't show. Most of whats in my engine is overkill. I probably could get by with a stock motor. I guess I'm just getting old........... I do remember dropping one on a really hot sbc in the traps.......ouch it didn't knock a hole in those pop ups but it made a mess of the piston head and gave the combustion chamber in those air flow research heads that freshly chewed look.....
ok i was thinking you said NOS stock oem manley valve.. there was a bad run 10 years ago or so guy were busting them .deal with ss valves is that many come from the same place just a re box deal .the price on most is very good on stock valves i do not clean and re grind them .i just buy new on OEM stuff . i have a hill climber.drag car .sand drag. that we used delwest titanium valves .locks . retainers. that stuff is very nice $$$$ i do re face them valves at a $120. each use a green wheel on the valve grinded to grind that stuff is tuff