Vehicle Details

Perhaps the most balanced engine for the 1969 model year was the L89 big-block, rated at 435 horsepower. Chevrolet started out with a four-bolt main, cast iron block, then engineers crafted a pair of high flow, lightweight, aluminum heads to top it off. Resting between the heads was an aluminum tri-power intake manifold with three Holley Model 2300 carburetors. While the L89 was rated at the same 435 horsepower as the iron-head L71, the L89 was known to produce slightly more power thanks to its ...