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Signman · 05-24-2020, 10:39 AM

Harmonics are probably always there it is when they magnify become intolerable would think is dependent on operating rpm. Friend had severe believe valve train issues with a Ford combination in a Late Model years ago when changing engine builders the second had him take gear away problem solved.

05-24-2020, 10:39 AM	#22
Signman Senior Member Join Date: Oct 2003 Location: Lower Slower Delaware Posts: 535 Likes: 22 Liked 269 Times in 99 Posts	Re: Roller cam bearings Harmonics are probably always there it is when they magnify become intolerable would think is dependent on operating rpm. Friend had severe believe valve train issues with a Ford combination in a Late Model years ago when changing engine builders the second had him take gear away problem solved. __________________ Frank Ferrucci I/SA 1271 "Be Thankful for the Gifts You are Given"