Unless you've got a really big truck, the 71 series engines are WAY too heavy for the suspension, even the 4-cylinders. The 4-53 I loaded up on Grigg's truck recently was about all the 3-point lift on my tractor wanted to handle! I drove and maintained lots of 8V-71's in my truck shop days. Good engines, but they're strictly made for big rigs. The 53 series engines (53 cubic inches per cylinder) can be adapted to 1-ton and larger trucks, assuming the suspension can handle the engine weight.
Jerry
