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Paul Workman · 06-24-2018

If ever you have the heads of you 90 off for porting, or whatever, Marc Haibeck can retro-cut the grooves needed in the valve guides to accept valve stem seals. It also reduces oil consumption a good bit as well.

06-24-2018	#7
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: Smoke at startup If ever you have the heads of you 90 off for porting, or whatever, Marc Haibeck can retro-cut the grooves needed in the valve guides to accept valve stem seals. It also reduces oil consumption a good bit as well.