heavy duty pump

[conan]

Hello!
I have a DB2-4153 (6.2)
What is the diffrens between light duty and heavy duty pump?
Is the injectors bigger on the 6.5L can i bolt them right on 6.2

[Robyn]

Hello

The HD unit puts out a little more fuel is all.
Mostly its an emissions thing here.
The 6.5 injectors from the early 6.5's that use a DB2 pump will work ok.
The later ones are of a higher pop pressure and are designed for the DS4 electronic pump.

Stay with stock type injectors and all will work well.

Good luck

Robyn