[quote=apollo18]Heavy duty/ high power block heater for gm v8
Looking for a heavier duty/ more power block heater for my 2003 hummer h2, it has a 6.0l v8. I believe the current dealership installed block heater is a 400w? so I wanna get something bigger and maybe with more heating capability. It gets to -40 celcius and I would love the extra heat inside the cabin.
What do you guys recommend? And do all block heaters fit universally?
Frankly I'd forget the block heater and install an inline coolant heater, they do cost more, but are way more efficient!
And you never have to worry about rust.