Virg464
Well-Known Member
Had my motor built by a shop (Petit Racing, in Mich) that my good friend recommended, they do all his engine work. My question is balancing: the motor is a 400 (external balance), the rotating assy was balanced during the build, do I still need to run an ext-bal flex-plate (the one with a scallop cut)?
I have a ext-bal flex-plate, but I'm concerned if I install it and don't need it, will that make the motor want to jump out of the car, damage the trans, crack the flex-plate, all of the above?
I have a ext-bal flex-plate, but I'm concerned if I install it and don't need it, will that make the motor want to jump out of the car, damage the trans, crack the flex-plate, all of the above?