I've posted on other Charger forums but I want to hear all answers. On my 73 400 Charger I'm finally finishing the powertrain/chassis buildup. I finally got the transmission successfully with the help of two friends. I also put a quart of trans fluid in the converter before I reinstalled it. Does the engine mount bolts need washers behind the head or is it ok to leak them without? I don't if the engine will sink down if I remove one bolt at a time to put in a washer. I noticed a few other small problems I need to fix before going for the intial startup. One of my brake line bolts is leaking at the caliper eventhough its all new and tightened. I noticed the speedometer pinion adapter is seeping but the O-ring was nice eventhough it was from a donor 727.

For the motor mount I would put washers on both sides of the bolt. If you jack up the motor with a floor jack and a block of wood under the oil pan you should be able to get the bolt out. You will need to lift the motor a hair with the jack just to take tension off it or else that bolt will never come out.