OE and Aftermarket Stock and Performance Parts for the Briggs Model 38 Vanguard V-Twin Engine. We commonly find these as race engines for B/P and FXT Racing Mowers.We have led the way for performance parts and have advanced mower racing to new levels of speed and competition. Our continued development has spread beyond race mowers to mud boats, golf carts, SAE Karts and even some UAS karts. There is nothing like the torque of a great V-Twin. Common Models 381777 Horizontal / 380477 Vertical