NH2112, 16v-71's are dang close to 12 feet long, IIRC. Been a while since I've seen one. 16v series engines are two 8v series engines bolted together... Detroit also made 12v series engines, both as a 71 cube, and a 92 cube. These were a true V-12, and used a common block and crank. The last time I saw a 12v-71 was when I was about 10-12 years old!!
A 6v-71's length should be close to 5 feet, from fan to bellhousing. Weight is real close to 2800 pounds, as there's a LOT of iron in the blocks, as well as the heads. They aren't a light engine....
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