young, broke and stupid 440 build

It is a street driver but i do want to be able to run it up to 6000 without fear of rod bolt breakage.
I've been running my 413 to 6 grand for 3 years no problems at all with heavy cast pistons and stock rods but i do have arp bolts, i actually am faster at the track shifting around 5,400 than i am at 6 grand so no reason to go there.