Jeep Strokers

Hello All,

Bottom end of a 4.5 stroker complete, well OK purchased.

93 4.0 block
258 crank
258 rods
Speed-Pro Hypereutectic Pistons +30

for the top
A 7120 head,

A comp Cam
Duration 250/256, Lift .460/.476

Thinking about steel roller rockers?
Oh, can some one tell me the stud size as well?

Thanks

Harland Sharp 1.6 roller rockers http://www.summitracing.com/parts/csp-s40196
of Yella Terra 1.6 or maybe 1.7 roller rockers.