American Powertrain's 600Xtreme Upgrade - Extreme Excitement

Long-stroke aftermarket crankshafts and large-bore aftermarket blocks are commonplace in modern Pontiac builds.
Long-stroke aftermarket crankshafts and large-bore aftermarket blocks are commonplace in modern Pontiac builds. Powerful street engines commonly displace more than 460 cubic inches and are capable of generating 600 lb-ft of torque and/or achieving peak horsepower at an rpm that was once considered unrealistic. Combining such an engine with a manual transmission can make for great fun, but itâ



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