That's one of the nicest 1 tons I've seen in years. I agree with cletis that it would be a shame to hack it up. A 302 with a thick radiator like out of a 450 and 3/4 ton third member would do wonders for it. There are specs somewhere, but it seems like the 302 is rated at 160 hp where your 228 is only 90 and I think the torque is around 260 at 1400, which thanks to its 4" stroke is a lot of twist. I guess an overdrive automatic could be put behind it, but it would be a challenge. 4.57 rears with 18" tires is not bad at all and everything would be a bolt together.