Re: 70hp jhonson 1977 stroke lenghth ?
the 1970 60hp points conversion was successful & i have kept everything standard , will fit all motors that came out with points & condensers has great potential waiting for the patent lawyers to finish their job , my next conversion is to put motor car piston in, that's why i needed the stroke length ,to work out the length for my con-rod , &fit a radiator to it , i have also converted the the 60hp to manual shift from electro gearbox , buy using the original intake manifold , plus a few other conversions to the motor , photos will be available later k
