Looking for some understanding here fellas- I have read that the 518 is an overdrive version of the 727. To me then I would assume that the 518 is just as strong as a 727. Is this true? If not, why?
The front part is as strong if not stronger.. the
rear(the OD section) wont take a ton of torque being
that a 800# spring pressure applies the OD.. but if
you are racing it the OD would be turned off... I keep
the OD switch turned on all the time.. lacking any track
time... the 518 is 47# heavier than the 727 and it has a
bit larger case in front and is longer
EDIT
The coolant lines are 3/8 on the 518.. 5/16 on the 727
