I'm using NASCAR style rod bolts with 12 point heads to give a little more camshaft clearance on the stroker crankshafts with a 4 5/16" stroke. 3/8-24 helicoil inserts in the rods give approximately 2X the thread engagement of a regular stovebolt rod bolt and nut.
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!