Cadillac 472 series V8 engine

The Cadillac 472 series was an all new V8 introduced for 1968, built because the 429 cubic inch limit of the older architecture had been passed by Chrysler 440 and Lincoln 462 and 460 engines. With a 4.3 by 4.06 inch bore and stroke it displaced 472 cubic inches, about 7.7 litres, and was redesigned to ease maintenance, using 10 percent fewer parts and 25 percent fewer gasketed joints. It delivered 375 horsepower at 4400 rpm and 525 pound feet of torque at only 3000 rpm, and was about 80 pounds heavier than its predecessor. It was designed with room to grow to 500 cubic inches, and for 1970 a longer stroke made the 500 of 8.2 litres, rated 400 gross horsepower and exclusive to the Eldorado. Lower compression cut it to 235 net horsepower in 1971 and 190 by 1976, when an optional Bendix electronic fuel injection raised that to 215.