Hi just new to this site. In Australia the 350 buick mtr is a very rare creature. I had a crack in one of the heads via the egr crossover camber. It took months to find a head & guess what it was over the west and I live in the east. The head was of a 1968 which were oiled through the rockers the 73 oiled through the lifters & push rods.After agreeing on costs for head & shipping. I was concered it might not fit. The main differencess I found were the water jackets were round on the 68 and I had the reconditioner plug the oil feed for the 68 rocker assy. Everything fitted and it goes well. The question is can the later heads fit the early 68/69 350 V8.As I was thinking of puchasing the 68 mtr as a spare.
regal1973