I will trade big block chevy parts for a nice 2.5 liter powerhead. I have new set of pro comp alumium heads, a set of used ross 20over 427 pistons with pins and pin buttons, i have a nice std bors ls6 454 rotating assembly with the 7416 casting crank and dipled 7/16 rods and std bore 12to1 compression open chamber domed pistons, i have a nice callies magnum crank ready to run, have a nice set of 781 oval port heads ready to run my email is [email protected]