I use a frost plug heater under the manifold of my 261 (and previous 235) since below zero starts were sometimes needed back in my working days. I wonder if those can be used on the ends of the block.


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.