Donovan, did you buy them like that or did you get them chromed? Trust me, there is a good chance the block is also a 73 to 76 block, which is just as good. Otherwise, why not use the #5 or #6 heads? The #8 heads also aren't bad after a bowl hog cutter under the exhaust valves especially. You would also see a big N on the crank which is supposed to be stronger than the later cranks, nodular vs grey iron. I believe that change was 73 or 74 on the cranks. You have a good foundation and should be a good cruiser as is. Make sure you use a lot of part throttle timing with this motor.
