I had to look those up. 1.7 ratio for 3/8 stud.
First you will have trouble getting them to fit under a stock VC. You may get it done by bulging the front and rear of the VC with a ball peen hammer and some time. The internal baffles will need to be removed.
One more thing about the 3/8 rocker studs and roller rockers. The bolt boss will likely hit the bottom of the roller rockers. It is best to pull the studs and machine the boss's down and thread for screw in studs. 7/16
