I didn't take a picture of the heater before I installed it, but here's one swiped from the web. It seals with an o-ring and the bolt thru the center spreads the piece behind the core plug hole to hold it in place.
Plugging this in for a couple hours will get the engine to a fairly toasty temperature (at least above freezing.)
Attachments
Block Heater.jpg (16.04 KB, 89 downloads)

Last edited by klhansen; 03/06/2026 2:58 AM.
Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.