i have a new scat 4340 steel crank and a 454 mark 4 block 4 bolt block and some new H beam rods on the shelf . i forgot about . old age ...i could have Race tec build the piston that fits . they still have my custom piston on file for this build with a 4.375 crank my piston on file works for this build at 10.5 cc. with a 118 head . i could machine up the parts in to a short block . i do not know were your at but i ship engines out it not to bad of a price