Nitrous Oxide - 427 ls block n20 combo?

I have a 427 ls block what crank length and rod length should I build for a good n20 combo? 250 shot one stage

nobody?

What size is the bore? If its a 4.125 bore then all you need is 4" crank w/6.125 rods.

What bore are you going with? Honestly I'd put a 6.1 rod in the car and give yourself some more room (if this is a 4.125 bore/4 inch stroke) for the ring pack above the wrist pin.

4.130 bore and 4" stroke with a 6.125 rod.

block is stock bore now ,and perfect
I just dont want to send up with the ring to high.
thanks for the help

3.9 crank and a gorilla piston.... Id take a 402 with a sick nitrous piston over a 427 with a "good" nitorus piston every day...