Well I ordered a 410W from Dyno-Flo and it cam a few days ago. Its a 69 Blockbored .40 over with forged Probe dish pistons and Mahle rings, Eagle 4" 4340 forged crank, Eagle 6.2" 4340 forged H beam rods, King Pro Race rod and main bearings, and ARP main studs. If I use a 64cc head my comp. ratio should be at 9.3:1 correct? Well here are pics of my new motor and progress so far. All I have to do is undo the fuel lines and then pull the motor out. Ill use this thread for my progress.