steel VS aluminum under drive pulleys

[russ1979]

Thinking about getting under-drive pulleys for my 88 5.0.
i noticed that you ca get steel or aluminum. i know alum would be lighter but other then that is there any reason to pay almost twice as much for the alum.

 

[stangbang302]

also stronger

 

[Sicarius428]

They look nicer... I have steel myself though because they are sturdier. Mine are starting to get surface rust but thing that a rattle can can't fix.
Kevin

 

[Mustang5L5]

They don't rust...less rotational mass...look better.


I have AL on my car...but lucked out because I was given them for free

 

[PNW LSC]

Aluminum looks nice, but once you get some mileage on the pulleys they can start to wear down. I have about 30k on a set and they have a deep groove where the belt rides.

 

[Kdubslugga]

Yeah, pretty much all has been said, They are lighter, you wont see much power maybe 1 or 2 hp, Alum look a lot better, just have to weigh your options. To me its not worth it to spend the extra money.

 

[93luv]

>>>>the wear is due to aluminum being a softer metal, mustang5l5 hit it on the head...thier selling lighter pulleys to reduce rotational mass just like when selecting flywheels.. steel or aluminum...Extra strength or Extra 'edge'
to me, unless you got other shiny bolt-ons (intake,tb,valve covers etc...)
itll look kinda funny if in stock form, if you just have 2 shiny-ass pulleys.

But then again u can get'em lite now and upgrade the others later...thatll save the head pounding of doin it twice. Like-dont buy a 190pump if in your future plan, your gonna someday need that 255

 

[ALMOST STOCK]

10 years and probably 24,000 miles (no it's not my DD) and I don't see any wear on my March Performance Aluminum UD Pulleys.
Yep.... they're not all created equal.

 

[stykthyn]

10 years and probably 24,000 miles (no it's not my DD) and I don't see any wear on my March Performance Aluminum UD Pulleys.
Yep.... they're not all created equal.

I love it when you chime in your car is one of the best hands down.