Chaplin,
I only have the best things to say about Southern Automotive. They are truly first-class people who stand behind their product.
I would imagine that the components will differ from engine to engine based on the customer's wants and needs. My specific engine has Eagle H-Beam rods, Wiseco pistons, Dove roller rockers, Edelbrock heads, Edelbrock water pump, Reed cam (I think), and Holley carbs. I can't remember the manufacturer for the bearings.
Keith
