Engine Underdrive pulleys

[Willybill32]

Are you running underdrive pulleys ?
I'm running March underdrive pulleys with a 200amp alternator so sweet I could feel the hp power increase after they were installed. That was one of the first mods i did years ago. Wonder how the cobra pulleys are? But after watching this I think I might upgrade to the SVE pulleys.going to check the size specs for the March pulleys first.

View: https://youtu.be/Nkwg3lyZB_A?si=8A0-Kvz61jwboeAu

I put under drive pullies on my ‘86 5.0 shortly after I bought it new. 98K miles on it now, and never a problem.

Bill

 

[Mindseye007]

I put under drive pullies on my ‘86 5.0 shortly after I bought it new. 98K miles on it now, and never a problem.

Bill

Which pulleys did you buy? MARCH ?

 

[Willybill32]

Which pulleys did you buy? MARCH ?

@Mindseye007, that was almost 40 years ago! At this point, I have no idea of the brand. I remember they were powder-coated black…

Bill