If you think those stick bad, break loose a 390 Ford intake that's been bolted on 50 plus years. You'll need the engine hoist alright......but to pick the intake up. Not break it loose.
Not trying to "one up ya" but try taking a flathead head off an olde 36 international. My attempt idea is; I'm going to shove nylon rope down the cylinder with the piston at the bottom of its stroke and then gently rotate the crank and see if it will break it loose off the studs that wont come out. Which is all of them.
