When Ford says the Boss 302 is a race engine, it isn’t kidding. You’re looking at the only difference between the Boss 302 and 302R engines—the R’s heavily baffled, 14-quart wet-sump oil pan. Handbuilt by Watson Engineering, this pan would have made it into the regular Boss 302 except it doesn’t fit the engine rack in the assembly plant, nor will it “deck” (a.k.a. install) in the chassis on the automated assembly line. Boss 302R engines are built on the Essex assembly line alongside standard Boss 302 RoadRunners, however.