I-6's on surface by the distributor. ON V-8's it is stamped on the part of block that sticks out past the pass side (right) head. I don't know on V-6's like yours, but that may be good choice. May have some letters and then numbers, which are a date code. Letters tell year, vehicle it's in, and trans usually used or carb maybe. You'll need a chart for the codes from somebody or dealer.


G.L. Grumpy's
Old Iron Ranch
Huntington, IN 46750


MM R tractor, Speedex
and Power King tractors