OK- - - - -thanks! I'm building a setup to replace the rocker shaft and rocker arms with stud-mounted roller bearing rocker arms and pushrod guide plates, and the studs for the exhaust rockers need to match the angle of the valve stems to keep the geometry correct. The item that replaces the rocker shaft will be a solid steel bar 3/4" thick by 1 1/2" wide, mounted to the same stud holes in the head as the rocker arm stands. Rockers will be for a big block Chevy with a 1.7:1 ratio. This setup will be used on the engine I'm building with MOPAR roller lifters running on a Corvette/261 camshaft.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!