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Holley 1987-89 5.0L GM Truck 502-5

SKU: 502-5

Availability: In stock

Handling Time: 30 Days


1987-89 5.0L GM Truck

670 CFM Two Barrel TBI

Holley designed these throttle bodies with all relevant emission provisions and hook-ups for a true 50-State legal installation. They are engineered for a "bolt-on" installation on stock factory manifolds for the applications cataloged. This replacement throttle body is considered to be the functional equivalent of the original equipment throttle body and, as such, is considered to be 50-State legal. Therefore, the C.A.R.B. E.O. number is not required.


  • Direct Replacement For OE Units
  • 2 in. Throttle Bore
  • 42% Area Increase Over Stock TBI
  • Including Air Distribution Ring
  • Increased Torque and Horsepower up to 25%
  • 50 State Legal

Installation Note:Fits 1987-89 5.oL V8 Full Size Chevy/GMC Truck


  • Barrels: 2
  • Brand: Holley
  • CFM: 670
  • Emission Code: 1
  • Material: Aluminum
  • Product Type: Performance TBI
  • Throttle Bore: 2 inch
  • Warning: California Proposition 65