Asked by touch_of_gold_car_cl... Dec 18, 2006 at 11:40 PM about the 1969 Chevrolet Impala
Question type: General
is this unique with an ss427 engine?
Hello The SS 427 badge was option Z24 on the base 1969 Impala model. It came with two engines: a V8 with a Rochester single four-barrel carburetor which was rated at 390 horsepower at 5400 rpm and had 460 lb-ft of torque at 3600 rpm and a special COPO that had an 800-cfm Holley Carburetor which produced 425 horsepower at 5600 rpm and 460 lb-ft of torque at 4000 rpm. I'm not sure the valve covers would give a proper answer, but checking the carburetor should help. Best of luck! CarGrrl
the weiand intake is most likely aftermarket. the 427 is a unique engine there wasn't many in the impala. as far as hp rating just look in a repair manual. there were 427s with 390 & 425 hp .
is this unique with an ss427 engine?
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