I did it once WAY back right out of High School, when I had to fart in my pocket to have a cent.
The heads were "906" castings for my 1979 Roadrunners 440 engine. With it's 3.90 rear gears the "fix" was very short lived. Worked fine at first, but one summer of street driving and weekly trips to our local drag strip and they were loose again. I wouldn't use or recommend that type of repair to anyone.....FWIW....
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran!
https://cliffshighperformance.com/
73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),
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