i just bought a 1965 buick electra 225 , i think the engine is over 300 cubic inch , the decal on the air breather says its a 445 wildcat , can anyone tell me what the 445 wildcat means ? thanks
the cars serial # is 482375H216831

Dennis, the label on the motor refers to the torque rating, 445 ft.-lb. This was confusing to buyers when the cars were new, it is still confusing to restorers 35 years later. The engine is a 401 cid. The VIN does not describe the engine data. The engine production code, which is stamped on the front of the block near where the head attaches, does give engine data. The number is in the form AB123. The engine serial number will also be stamped on the block somewhere nearby. It will be the last 8 characters of the VIN and will tell if the engine is the one which came in the car. The letters of the engine production code are given on the home page of this site. Just click on the model year along the left side.