Power Pulleys
Elder User
Joined: Nov 1999
Posts: 796
Likes: 3
From: Anderson Northern Ca
Power Pulleys
Mustang, I looked for these pulleys for my 300 and e-mailed two online companys that make them and they both said no,I can't remember the names, good luck.
"bowties in the rearview mirror"
"bowties in the rearview mirror"
Junior User
Joined: May 2001
Posts: 63
Likes: 0
Power Pulleys
If your truck has a serpentine belt, the pulleys from a 302 should work fine. I bought a kit for the 302 and used the alternator and P/S pulleys . I didn't use the waterpump pulley but I know it fits on my 90. If you are in doubt, call someone like Summit Racing and verify the inside and outside diameters.
Posting Guru
Joined: Jan 2001
Posts: 2,358
Likes: 3
From: Nebraska
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Posting Guru
Joined: Dec 1999
Posts: 1,903
Likes: 2
From: Copley, OH
Power Pulleys
Power pulleys are a set of replacement drive pulleys featuring a smaller damper pulley and larger alternator, water pump and sometimes power steering pulleys. They reduce the speed of the belt and further reduce the speed of the alternator and pumps.
This performs a couple of functions. First, it reduces the parasitic horsepower losses from running the alternator and pumps leaving more HP for moving the vehicle. Second, if you've done a gear ratio change they compensate by reducing the speed of the belt driven components at highway speeds.
They're a very common and useful modification to a 5.0 Mustang where the 3.08 gears have been replaced with 3.55 or larger
There is a down side, they reduce the charging rate, engine cooling and air conditioning capacity at low speeds, so if any of those areas are marginal, they can create a problem.
This performs a couple of functions. First, it reduces the parasitic horsepower losses from running the alternator and pumps leaving more HP for moving the vehicle. Second, if you've done a gear ratio change they compensate by reducing the speed of the belt driven components at highway speeds.
They're a very common and useful modification to a 5.0 Mustang where the 3.08 gears have been replaced with 3.55 or larger
There is a down side, they reduce the charging rate, engine cooling and air conditioning capacity at low speeds, so if any of those areas are marginal, they can create a problem.
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