Check out the bolts sold by ARP, the racing engine parts supplier. I don't know if your specific engine will be covered, but they sell a wide variety of bolts, and they're much stronger than original-equipment parts. When I'm building a "claimer" race engine with stock rods, I always switch to ARP bolts.
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!