Skip to main content
Holley

Holley 502-6 Throttle Body 670 CFM Two Barrel TBI

Part # 502-6 Be the first to write a review

Compatible with 1987-1989 5.7L GM Truck

Read More

Holley 502-6 Throttle Body 670 CFM Two Barrel TBI

Not Available

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.

Features:

  • 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
Brand Holley
Emission Code2
FinishAs Cast
Product TypeThrottle Bodies
QuantitySold Individually
UPC090127105177
Manufacturer Part Number502-6
Part Number502-6
2

This part is legal for sale and use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
Instructions for Part# 502-6
Fits 1987-89 5.7L V8 Full Size Chevy/GMC Truck

Have a question about this product?

    Load More
    Reviews

      Your Review

      *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

      Some parts are not legal for use in California or other states with similar regulations.