no you don't. you just need a front or center sump (can't remember which) oil pan from a passenger car. truck pan is different. you will need a drop center steering link to clear the oil pan and swap mounts from Shumacher. Really its no harder than a 318 swap and why give up the extra cubic inches, especially since you are in such a quest for horsepower. don't forget to swap to a stronger rear axle, too.