not so fast...E Booger wrote an extensive article some years ago that will answer all your cooling questions.He made a point to say this Mopar Performace piece was usually "adequate". It is designed to
scrounge horse power for racing applications ....not idling in heat.Yes i bought one and it did not work
well for my warm 340, but still it may work for you.I have tried stock Mopar clutch fans too and they also struggled idling in heat. Stock seven blade mechanical is best.
Sorry Rusty.
