I think there are several reasons this motor doesnt get much attention. The aftermarket is so LS crazy right now. Jegs and Summit have everthing on the self to make BIG power. Hell, even the Ford mustang guys a ditching there Ford motors for LS units. The have the new 4 valve coyote will make a ton of power when ever swapped into place. The 4 valve motor could get pricey and doesent have the aftermarket the LS does. The 4200 is really modern motor and poeple want to stay with push rods I guess. Maybe Kooks Headers will stat a trend and thing will look better for this motor.
Is there an aftermarket for the 5 cylinder Colorado engine?
