I will be sending a k20A2 to to my engine builder tomm. I want to do all motor but not sure how I want to build it. This is what im thinking 12.5-1 CP pistons, head studs, block gaurd, crower maybe stage 2 not tubo grind but the N/A setup, crower springs, and retainers. I will use oversized pistons but im not sure what bore size I should use. As far as a clutch goes I have to do some research because im not sure what is available. I want this engine to be a beast but also reliable which is why I dont want a 2.4, I want to rev without any worries. Give me you opinions. Also if you know anyone with a complete wire harness, or ECU for the K20A2 please let me now. Thanks.