For me the lost engine from the 60's was the Oldsmobile 330ci 320hp. I had one in 1971 in a 1967 Cutlass Supreme and it would run with the 400 of the 442 all day long , often beating it when both were stock. But what it did do was run smooth as silk up to 7,000 rpms and hold it without apparent stress on a top end highway run in 3rd gear. When the car had a rear end ratio around 3.0 to 1 ( I forget the actual ratio which may have been 2.76 or 3.08) you could attain a higher top speed in 3rd than 4th gear. I also made a few bucks betting the big money boys and their fancy engines that I could hold that 7 grand for 15 minutes going down the road. Back then a few guys making $20 bets would supply my gas and beer for the weekend. She never did have a single engine problem, but I did tear the side off the car brushing a sign post at 117mph. That engine was superb delivering a tried , measured and true 20mpg running 60 to 70 mph between Connors Chevrolet in Long Island, NY to our affiliate in New Jersey. Boy were those better times.
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