No. Converting to screw-in studs is best done on a milling machine (or a rare jig-boring machine).
I haven't handled #47 heads- did the factory machine the tops of the stud bosses? If not, how did you machine them? The studs with integral jam nuts depend on the tops of the bosses being precisely flat, and square to the studs' centerlines.
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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons?
... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
... or has a Pontiac born the same year as Jim Wangers? (1926} 
Last edited by Jack Gifford; 04-12-2020 at 01:07 AM.
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