So if you go with the 2315's on the std rods the crank balance target would be 100 grams more than stock ie add mallory metal $$$ and just heavy and at a guess, crap compared to ANYTHING else your looking at building
Stock 383 bob weight is approx 2480gr
The diamond piston mentioned above (1.516CH) with a 440 source stock journal size 6.76 rod ($640+500) will net you a target bob weight of only 2205gr and roughly .016 off a 9.98 deck
kb162's 1.908CH matched to some K1 6.385 2.1 Sm Chev journal rods (CH6385ALRB8-A) plus some crank grinding to get them to fit ($440+322+machining) will be looking at 2312gr minus whatever the .275 worth of missing rod journal takes away, .0005 above a 9.98 deck
Cant find a 2.2 Journal size for that length rod for under 600, making the previous option better
http://www.jawzys.com/product.cfm?product=12050http://www.cnc-motorsports.com/keith-black-kb162-030-hypereutectic-flat-top-pistons-4280-bore.htmlI like the diamond/source option, but its not my money
edit the diamond piston with stock 440 rods will be roughly 2382gr BW - cheaper if you have good rods kicking around
