with left-hand water pump inlet · fits 1970-1980 302 1970-97 351w crankshafts with ... internally balanced crankshafts 1994-01 mustang and explorer require modification does ... built with a 28-ounce imbalance factor 1970-74 351c engines were built with a 28-ounce ... damage will result if you use the wrong flywheel or damper on your engine 126 techline ...