The 400ci V8 was factory-equipped with a single four-barrel carburetor and peak output was rated at 335 horsepower and 431 lb-ft of torque when new.A 2023 service included an oil change.Engine stamping 090237 is shown above and matches the “engine unit number” listed in the Pontiac Historical Society paperwork.The five-digit odometer indicates 75 miles, total mileage is unknown.