What Is The Difference Between External And Internal Balance Which One Will Be Better

I plan on ordering eagle compitition rotating assembly part #ESP-B12508030 from summit for my small block 400, but the assembly is internal balanced and chevy 400 engines are external. I can order a external balance assmbly but I would like to know which would is better external or internal balance but the part number I listed is the one I want.

Answers for The Question

  1. Bigoleman
  2. phil06437
  3. Hall + Oates