ed, what would be a good rod stroke ratio for that 622?
Would that be a 10.2 deck block, or taller deck block? Is the 622 a 4.750 stroke by 4.560 bore? What would be your head of choice to make it turn to 7500 , only occassionally when needed, and how much hp do you think you could make at 11.5-1 comp ratio with a 622. I run a lot of gas out on the lake so av gas would have to be the fuel of choice. I currently have a 6.535 rod with 4.5 stroke in merlin 3 block, 4.5 bore and i dont like that short rod. I really feel a lot better with a much longer rod. I would think a 10.7 deck block would be preferred. My 572 makes around 725 lbs of torque and 725 hp with 9.7-1 comp and pump gas. If i could get around 850-875 lbs of torque and around 900 hp, that would be just right and have a small shot of nitrous if needed.