Quote:
Originally Posted by EChas3  I'd not mess with a Block Heater that installs through a 'freeze plug'. An aftermarket coolant heater will do the job and preserve the N* block.
Charlie Smith
Cedarburg WI |
The factory block heater is not a "freeze plug heater". It is a purpose built heater that slides into a cavity in the rear of the block that is machined for that purpose and retained with a clip. It heats the engine sufficiently for starts down to at least -50F. It works very well for me.