Stop discarding good 340 engines ! !
It's fun to think about the differences between the 340's and 360's. The 340 was always a performance engine. It was never a 2 barrel that was used in a big car or truck. The 360's were used in cars and trucks with 2 and 4 barrel's and in the mid 70's as a replacement for the 340's in performance cars and trucks. Every manufacturer was building bigger engines and reducing compression, valve size, and camshaft to meet emissions and try to help fuel mileage.