I used Eagle Crank and Rods with L19 bolts with JE 13.2 pistons, i also used bearing spacers on the mains. The whole unit including balancing cost about $1700.00, but there are better rotating assy's out there. I have turned mine to 8,000rpm and it has run 5.15, 1/8 times and 8.23 @ 158 in a dragster, never used nitrous though.
Zip.