Well they didn't come with 283's either. So you must have been prepared to do some fab work and find drivetrain parts. This will be no different and maybe easier. The drag racer family will be very good at fabbing up whatever you need. (motor mounts, etc). The gurus here will advise what transmission/bell housing/driveshaft issues you may have. I think the 228 was a longer motor, so you may end up with a larger space between fan and radiator.

A 55 didn't come with a 283 either. But that's OK. Good ol' motor.

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn