New to A Body's

I have a 1972 Plymouth Scamp, B3 blue and it has been sitting for since 1989. Motor is currently stuck been applying marvel oil and transmission fluid through plug holes . Will be applying about 20 lbs of weight to breaker bar and just let nature take its course. My other Mopar is a 2015 392 SRT Challenger

View attachment 1716296216

View attachment 1716296217
Welcome! Both are good looking cars. What engine is in the scamp?