Rather than install an expansion tank when I had that situation I put a Watts Governor 80 pressure regulating ballcock in the basement toilet tank. Bleeds off the excess pressure( over 80 psi) into the toilet. Working great 25 years later. You may want to check your water pressure as well as a...
I just trash picked the same mower/engine on garbage day. The deck was so rotten that the front wheels effectively had independent suspension. **** thing started first pull. Pulled the engine as a back up for my 30 year old Briggs.
Paco
Thats just Dodge standard pricing technique. Over price it by a large amount so you can give a massive discount. Run screaming. I wouldnt touch one with a ten foot pole.
Paco