72 340 actual hp?
Wow even 1972. I heard that they all were cast in 1973, looks like most were in 1972 as well, they just used up the engine stock they had left over from 1971. They would have to, or eat a whole lot of money. Which makes since just drop the piston down in the bore a little and there it is lower compression use them up and all the other parts and then put the cast crank engines into full production, sounds logical.