good: The Mopar big block,with the external mounted oil pump,front mounted distributor,and 4 bolt water pump. A very easy engine to work on and maintain.

bad: The exhaust mainfold bolts going into the water jacket on the cylinder heads. With stock manifolds,the studs almost always come out with the nuts when removing them to change gaskets. With Headders the studs need to be removed to install them. This always causes a big coolant mess every time that the bolts are removed.