The “Y” in the VIN indicates that this ’64 Mercury is powered by a 390-cu.in. big-block with a two-barrel carburetor, backed by a Merc-O-Matic three-speed automatic transmission. The seller says the engine is original and calls the 65K miles “very low miles.” The seller says he has rebuilt and fixed the economizer and heat stove, so the engine starts right up when cold. He adds that the engine doesn’t smoke and that the only oil leak is a very slight one by the distributor. The transmission shifts “very smoothly,” in the seller’s opinion.