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Discover The Shocking Truth behind Chevrolet Banned 409 WidowMaker , in a must watch video! Learn about the history and controversy surrounding this legendary engine. this is a tale of engineering brilliance, corporate secrecy, and a powerplant so fast General Motors had it "betray it" to keep the competition fair. this is Part 1 Stay tunned for Part 2 tomorow History 1961 -1965 The Chevrolet 409 V8, sometimes nicknamed the "WidowMaker" by enthusiasts, is a legendary engine that defined early 1960s American muscle and drag racing culture. Origins and Specifications Introduced: December 1960, debuting in the 1961 Impala Super Sport. Displacement: 409 cubic inches (6.7 liters), achieved by increasing the bore and stroke of the earlier 348 W-series engine. Power Output: 1961: 360 hp, 409 lb-ft (single 4-barrel) 1962: Up to 409 hp (dual 4-barrel), 420 lb-ft 1963–1965: Up to 425 hp (dual 4-barrel), 425 lb-ft Compression: Up to 11.25:1 in high-performance versions. Notable Features: Staggered intake/exhaust valves, forged pistons, mechanical camshafts in high-output versions Performance and Reputation The 409 quickly gained a reputation for impressive straight-line speed and durability, making it a favorite among drag racers and street racers alike Its immense torque and horsepower often overwhelmed factory differentials, leading to mechanical failures under hard launches—a trait that contributed to its "WidowMaker" mystique. The engine’s fame was further cemented by The Beach Boys' hit song “409,” which celebrated its performance on the street and strip. --- Racing Pedigree** The 409-powered Chevrolets saw major success in NHRA drag racing, with drivers like "Dyno Don" Nicholson and Hayden Proffitt winning Stock Eliminator titles in the early 1960s. The engine was also the basis for the ultra-rare Z11 427, a special drag racing variant with even more displacement and power Legacy The 409 was discontinued after 1965, replaced by the Mark IV 396 and 427 big-blocks, which offered even more performance potential. Today, the 409 is revered for its unique design, racing history, and role in launching the muscle car era. Restored and modified 409s continue to perform in vintage drag racing, with some cars running quarter-miles in the low 11s and even 10s[8]. --- Summary Table | Year | Carb Setup | Horsepower | Torque (lb-ft) | Compression Ratio | |-----------|----------------|------------|----------------|------------------| | 1961 | 4-barrel | 360 | 409 | 11.25:1 | | 1962 | 4-barrel | 380 | 420 | 11.0:1 | | 1962 | 2x4-barrel | 409 | 420 | 11.0:1 | | 1963–65 | 4-barrel (low) | 340 | 420 | 10.0:1 | | 1963–65 | 4-barrel (high) | 400 | 425 | 11.0:1 | | 1963–64 | 2x4-barrel | 425 | 425 | 11.0:1 | AMERICAN Car History, Season 1 The Shocking Truth Behind Chevrolet Banned 409 WidowMaker Engine • The Shocking Truth Behind Chevrolet Banned... The Shocking Truth Behind Chevrolet's Banned 454 Big Rat Engine! • 454 Chevrolet Engine Changed Automobile Hi... The shocking truth behind Chevrolet Banned 427 L88 ENGINE! • The shocking truth behind Chevrolet Banned... The shocking Truth Behind FORDs Banned 351 Cleveland Engine • The Shocking Truth Behind FORDs Banned 351... The Shocking Truth behind Pontiac Banned 421 Super Duty Engine! • The Shocking Truth behind Pontiac Banned 4... The Shocking Truth behind Chevrolet Banned 396 Big Block Engine! • The Shocking Truth behind Chevrolet Banned... The Shocking Truth behind FORDs Banned 427 Cammer Engine! • The Shocking Truth behind FORDs Banned 427... The Shocking Truth Behind Chevrolet's Banned 427 Mystery Motor • The Shocking Truth Behind Chevrolet's Bann... The Shocking Truth behind Ford’s Banned BOSS 429 Engine! • The Shocking Truth behind Ford’s Banned BO... The Chevrolet 409 earned the "WidowMaker" nickname due to its raw power and the mechanical risks it posed to unprepared cars and drivers. Its blend of street and strip performance, cultural fame, and racing pedigree make it one of the most iconic engines of the early muscle car era Best Community Comments @Frogs7d Had a 454 396 427 none of them run like the409 i had 2 4 barrel's factory .Join this channel to get access to perks: / @rarecarstorys