Q.: What is the crankshaft balance factor of my 302 or 351W/C engine?
A.: 1968-80 302 engines were built with a 28-ounce imbalance factor.
1981-2001 302 engines were built with a 50-ounce imbalance factor.
1969-97 351W engines were built with a 28-ounce imbalance factor.
1970-74 351C engines were built with a 28-ounce imbalance factor.
Note: Severe engine damage will result if you use the wrong flywheel or damper on your engine.