if you have a core... we send my son's 350 for the 68 elcamino to a local rebuilder for $850
it is 2 piece rear main seal and flat tappet cams
orrieg; the ramjet is the marine version and came with an MEFI (marine efi) controller, complete wiring harness and all sensors.
the gm e-rod motors are similar w/ harness, controller, sensors and cats. they are certified for california in pre-85 vehicles.
the e-rod motors are the cat's meow