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Review on πŸ”§ BBK 1603 Underdrive Pulley Kit for GM Truck - 3 Piece CNC Machined Aluminum, Suitable for 4.3/5.0/5.7L Engines by Jhonathan Bagwell

Revainrating 4 out of 5

Great pulley kit but does not retain the existing factory belt.

I got this pulley kit for my 1990 Chevy 350. The kit worked great and I got more horses as a result. Just keep in mind that since you're using smaller pulleys, you'll need a smaller belt.

Pros
  • Quality Construction
Cons
  • Compatibility