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Mike Pearson · 02-08-2019, 02:13 PM

I would be afraid to run hollow stem valves in my engine. I have had issues with the Manley exhaust valves dropping the head off and killing the engine. Now I change the valves every time I freshen the engine if they have around 75 runs on them. Not worth the risk.

02-08-2019, 02:13 PM	#7
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,434 Likes: 608 Liked 1,903 Times in 571 Posts	Re: Hollow Stem Valves I would be afraid to run hollow stem valves in my engine. I have had issues with the Manley exhaust valves dropping the head off and killing the engine. Now I change the valves every time I freshen the engine if they have around 75 runs on them. Not worth the risk. __________________ Mike Pearson 2485 SS