Looking closely at the piston after teardown (I didnt realize you could blow it up...) you can see a ton of oil on it.. I'm sure it was detonating... another tell tale is the bluing on the ends of the top ring (at the split...). Lots of heat there that shouldn't have been.
Great eye Moper! I never thought of blowing it up and checking the ring gap ends.
Looking close at the intake... I'd like to think he would have done better by filling the lower portion of the intake plenum rather than using a 4hole spacer.. the air has to turn a sharp 90 to enter the port now and I'm sure is turbulent at least a little in the center. Better signal, yes, but not better performance.
My thoughts exactly.
I also wonder looking at the heads if he chose the CNC chamber on purpose. He's got full custom domes on the pistons... it would be much easier with a CNC chamber rather than hand fitting generic domes to hand shaped chambers.
You are spot on again. I wonder if he took a cast of the chamber and sent it to the manufacturer.
I wonder how it would be with no spacer, a turtle or plenum reducing feature, a 2.02 intake, a 1.5 intake rocker, and a piston with a 1/16 ring stack...