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Holley 502-4 - Holley GM 2-bbl Throttle Bodies

Holley 502-4 - Holley GM 2-bbl Throttle Bodies

Holley#510-502-4

Replacement 670cfm TBI
  • 1986-89 GM 4.3L V6 truck

    Holley 502-4 - Holley GM 2-bbl Throttle Bodies Details

    670 cfm

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

  • Holley 502-4 - Holley GM 2-bbl Throttle Bodies

    Bolt-On Power & Unmatched Flow
    The Holley GM 2-bbl Throttle bodies have been designed with all the relevant emmisions provisions, electrical hook-ups and are replacements of the original equipment throttle bodies for the applications shown.

    Features:
  • Direct replacements for OE units*
  • Increase HP & torque up to 25%
  • 2" throttle bores provide 42% more area than stock
  • Compatible with OE plug-ins for a quick installation

    *These Holley throttle bodies are considered equivalent to original equipment so they're 50-state legal and do not require a CARB Executive Order number.

    *670 CFM units may require intake porting or throttle body spacer 555-15404 and fuel line extensions 555-15411.

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