Its a eagle forged 2 piece crankshaft, New rods and pistons. I already have dual plane. The motor was running but had a crack in water passage to the head bolt. Previous owner sealed it up with silicone and very loose torque. I scrapped it and got a new block. I went .040 over and have to get new pistons anyway. For the extra 1500 ill put in a crank and turn into a 392 i want to do it right. Is the flew plate important. I have considered b&m i have a b&m 2500-2800 converter now.