So, aside from making sure my baby (both car & younger sister) are in good mechanical order, I am trying to come up with a cold weather starting pack for the '84 240 for its upcoming winter in N/W Montana where my sister now has it. It started for me quite well on many cold Maine mornings, but it now has 70k more on the clock and I want to make as sure as anyone can she has trouble free starts on sub-zero mornings.

My question to y'all is, is there an adapter or threaded bolt that would fit the freeze plug that I could then clamp a hose to for a Zero Start http://www.jcwhitney.com/autoparts/Product/Pr-p_Product.CATENTRY_ID:2000837/c-10101/Nty-1/p-2000837/Ntx-mode+matchallpartial/N-10101/tf-Browse/s-10101/Ntk-AllTextSearchGroup?Ntt=zerostart

and if so, does anyone know the freeze plugs measurements beforehand so I could hunt for a fit? I have not been able to locate just an old fashioned plug in block heater (like I use in my Mercedes) and I am not a fan of dip stick heaters or pan heaters(inadequate) or side mount magnetic block heaters (uneven distribution and not quite as comfortable a start for the motor). I will have her use a battery warmer, etc, but have always been very happy with the Zero Starts, just have never put one in a 240...

Suggestions are more than welcome... :)

HC