cause you can turbo a sohc with a junkyard kit for less than a grand and be faster and spent less money than doing a motor swap.......shit, a friend of ours bald head dave ran a 12.0 on a sohc dx motor with a junkyard turbo setup, a leaking headgasket and 900000 miles on the motor, they can be crazy fast man........although the average of them arent that great, they can be........