New Old 440 RB Big Block

So you want a 440 that’s more powerful than stock but still retain the outward appearance of a stock motor (including intake and exhaust manifolds) and still being streetable. Such was the challenge for an engine builder in Canada. What can you expect for output? How about 500 lb-ft of torque and 380-plus horsepower? Find out what they did at Street Legal TV. Dyno video after the jump!