yep you can do it but why? by the time you pay to have the crank mains ground down you can buy a new crank$180 that fits for about the same as a regrind. the time you pay to recon the short rods.new 5.7 are less then 190.a set new .claimer pistons that fit are 200. now if you get the machine shop work for free or near free then do it . it was done at one time as there was no parts like there is now as for the pistons the CH is the same as the 350 .but you may not find a cheap piston that would clear the counter weight of the crank so there alot of pissing around when its really not needed .but yes it was done and can still be just going to cost as much as if you pickup a claimer crank assemblie