No engine swaps none !!!!!!!!!! Just bought 2 2.9 engines for $150 one has good compression and runs. Other one has stuck rings. Beside k&n filter , after market ignition and porting does one have any dirt cheap 2.9 build tips. Also does any one know where i can get world 2.9 head (i do not want to swap engines !!!!!!!!!!!) i do not have any extra money to spend this is my work truck. Thanks