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H. L. Chauvin · 01-03-2017, 09:54 PM

FWIW:

Set INT. @ 0.011" and EX. @ 0.013" and never have a problem with either original A cams and/or original B cams; and I even used same recently, (maybe 8 years ago), for my new Bill Stipe 330 cam.

These magic numbers can always take a licking, and you will never hear ticking.

They were given to me as a teenager in 1958, by my professional mechanic Uncle, born 1905; and after 59 years, would much prefer to fight rather than switch.

At a 45 degree valve seat angle, it would not take much valve lapping with good course and fine valve compound to close the gaps to 0.011" and 0.013" if you have original tappets.

01-03-2017, 09:54 PM	#7
H. L. Chauvin Senior Member Join Date: May 2010 Posts: 4,179	Re: How much is too much FWIW: Set INT. @ 0.011" and EX. @ 0.013" and never have a problem with either original A cams and/or original B cams; and I even used same recently, (maybe 8 years ago), for my new Bill Stipe 330 cam. These magic numbers can always take a licking, and you will never hear ticking. They were given to me as a teenager in 1958, by my professional mechanic Uncle, born 1905; and after 59 years, would much prefer to fight rather than switch. At a 45 degree valve seat angle, it would not take much valve lapping with good course and fine valve compound to close the gaps to 0.011" and 0.013" if you have original tappets.