thanks guys. yeah i already have the motor. i'm going to pull it this winter to fix a rearmain leak. the motor is zero deck(.005 below) stock crank and rods with kb162. being zero deck already does that have a negative effect on the stroke. i will call 440 source later. i'm looking for some insight/ experience outside of a supplier. would like to use the same block, intake and heads cut to already. only one season on it so bore clean up should be easy.