I have an 848 head on my 261 (yep, the holes have been drilled). It has the two-piece thermostat housing with each piece having the extra threaded holes. How are those holes used?

Do you connect them with fittings and short length of hose?

Thanks!


1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.