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1969 Chevy Chevelle Engine Options And Power Comparedwith the all-new L89 package taking a huge leap to an average price of $85,575. With the 425 horsepower 427 cubic-inch L72 ...
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Chevy 427 V-8: An Underrated Iron Bullet Aimed Directly At FordChevy's 427 was rare yet powerful ... carb setup which changed the engine code to the L71, increasing power from 425 hp to 435 hp. Then the L71 became the L89 when it gained aluminum heads.
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