1st 340 build
do you have pistons and rods? a stroker kit might be more what your looking for depending on your use getting crank from autozone is gonna be a cast crank you want a steel one. if you engine is gonna see lots of rpms in my opinion. for about 1500 you can get it all crank rods pistons rings bearings, everything for your shortblock. with crank choices you can get one with the same main journal size. good luck