It may have started out as an updated 348-inch truck engine, but it ended up as the CHEVY 409: BIG-BLOCK LEGEND! Two years before the Supercar hype and big-engined midsize cars, full-size ’62 Chevys, powered by 409-inch versions of the 348 W-Series passenger car and truck engine, carried the Musclecar banner for Chevrolet. While the engine first surfaced in the 1961model year, it was a late arrival. Just 142 Chevys with RPO-580 360-horsepower, single-four-barrel (Carter AFB) and solid-lifter-ca...