The L20 small block V8 engine, also known as the Vortec 4800, featured a cast iron block and was more powerful than its predecessor, the LY2. The 4.8 L L20 was featured in vehicles such as the Chevrolet Silverado and Express, and the GMC Sierra and Savana. Often sought after by the industry aftermarket, the L20 can be found in classic street rods to muscle cars to even race cars as a late model engine swap. Whether you’re just upgrading one of these cars or building from the ground up, Speedway Motors carries all the aftermarket performance parts you need to fully equip your L20 engine. Be sure to turn to the folks at Speedway Motors, your one-stop shop for everything LS.