The Buick 350 was the most prolific engine used in that time period, because they had an enormous Amount of them left over. I'd MUCH rather have a Buick 350 than a Chevy 350 any day anyway. Way more torquey. The only "weak" spot on the Buick V8 was the timing cover. It was a high wear item, because everything mounted on it. Distributor, water pump, fuel pump and I think even the oil pump body was an integral part of the timing cover. There was a lot of action goin on in the Buick timing cover, but they were really good engines.