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Just stick 1.7 roller rockers on the valves.
Isn't this damned thing together yet for f*xk's sake!?
I was going to say? ya can use fine thread 7/16 regular nuts and just double nut them,, adjust the lower nut as usual,, then when there adjusted,, just run another nut on top for a lock nut and its just barly over the top of the rocker,, well a wee bit more,, but then ya can run stock covers......
that was in my day when we didnt like the polly locks and they were 20 bucks a pop............ they were junk back then they always came loose,, with stock nuts,, ya couldnt get i socket on um with them type of rockers....
but it looks like ya got it fingered out,,,, yea oval port heads aint the best? ya need a good set of iron squareport heads.... and if ya got money to waist? hahahahahaha a set of ls7 aluminum heads will rock your world and bank,, but aint nothing like 435+ hp 427/454 BB chiviy.......
the ball rockers on BB chivy usually bust out the bottoms of the rockers.. rollers are the way to go,, now just dont twist it up to high and ya dont break valve springs... BBC's? ether its rockers or valve springs that will let go first,, usually.....
im an old Vette mechanic.......to many years to count..........
That motor lookin purty guud Iman
