cudaman51
Well-Known Member
i need a 340 crank shaft and am not doing well, i know where i can get one from a 66 poly 318 is that a useable crank shaft
Might be worth looking into a stroker kit though, for a few more dollars.
the register can be bored out in a lathe to 727 snout dim. the flywheel bolt pattern is same, years ago, mopar wanted you to use the 318-3 truck crank in the 273 and 340 for racing, since it was chem hardened. I've done 3 of those registers in a lathe!!! sad to say weight is about the same as a 340.