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View All Holley HP Main Body
Holley

Holley HP Main Body Dichromate "Gold" Finish

Holley 134-300C

510-134-300C

made in usa
jegs shipping
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Holley HP Main Body Dichromate "Gold" Finish $155.95
HP Main Body
  • Dichromate "Gold" Finish

    • Holley 134-300C Details

    HP Main Body Kits

  • Reduces Turbulence And Smoothes Air Entry
  • Pre-Calibrated At The Factory For Optimum Perf.
  • Simple Installation With Common Hand Tools
  • All Necessary Parts Are Included
  • Eligible For Holley Contingency Programs

    • Specifications:

    Accelerator Pump Discharge Nozzle Included
    Yes
    Air Bleed Material
    Brass
    Air Bleeds Included
    Yes
    Booster Type
    Down-leg
    Fuel Bowl Gaskets Included
    Yes
    Fuel Bowl Screw Gaskets Included
    Yes
    Jet Material
    Brass
    Jet Sizes Included
    72/84
    Jets Included
    Yes
    Main Body Finish
    Dichromate
    Main Body Gasket Included
    Yes
    Main Body Material
    Cast zinc
    Metering Block Gaskets Included
    Yes
    Metering Plate Gaskets Included
    No
    Primary Discharge Nozzle Size (in.)
    0.031
    Primary Inner Air Bleed Sizes Included
    35
    Primary Outer Air Bleed Sizes Included
    75
    Quantity
    Sold individually
    Secondary Discharge Nozzle Size (in.)
    0.031
    Secondary Inner Air Bleed Sizes Included
    35
    Secondary Outer Air Bleed Sizes Included
    75
    Manufacturer's Part Number:
    134-300C

    You asked for it and Holley delivers!

    The famous Holley HP main body found in every pre-2012 NASCAR Cup winner is now available in a retrofit kit to update your Holley Double Pumper. Holley has taken the science of fuel technology and introduced a retrofit package that converts your tired 0-4777 (650cfm), 0-4778 (700cfm) or 0-4779 (750cfm) (shiny or dichromate) into a race ready, high flow 750 CFM HP style carburetor with simple hand tools.

    Detailed instruction sheets with photos and all parts necessary for the conversion are included for simple installations, even by novice enthusiasts. A few minutes are all it takes to eliminate that restrictive choke tower and linkage and give your engine the airflow and horsepower it has been looking for.

    Don't settle for a cheap overseas knock-off, demand what the racers demand. Demand Genuine Holley!

    Features and Benefits:
  • Eliminates choke tower and associated hardware of standard Holley Double Pumper for increased horsepower, torque and airflow.
  • Reduces turbulence and smoothes air entry into the venturi
  • Pre-calibrated at the factory for optimum performance and drivability on a wide variety of applications
  • Simple installation with common hand tools can be accomplished quickly because all necessary parts are included:
    - Assembled Main Body with Screw in Air Bleeds, Down-Leg Boosters, Accelerator Pump Shooters and Vent Tubes
    - Carb to Baseplate Gasket
    - Metering Block Gaskets (2)
    - Float Bowl Gaskets (2)
    - Bowl Screw Gaskets (8)
    - Main Jets to properly calibrate carb for Street / Strip / Racing action
    - Detailed Instructions
  • Available in Shiny Finish (134-300S) or Dichromate (134-300C) to match your existing carburetor
  • Eligible for Holley Carburetor Contingency Programs
  • Adjustable Screw in Air Bleeds
  • Affordable alternative to HP series carbs for entry level racers

    • 134-300C is rated 5.0 out of 5 by 3.
    Rated 5 out of 5 by from Improvement Bought this to correct some issues with a modified main body (milled choke horn) noticed big improvement in throttle response, 95% reduction in hesitation in my case. Came with squiters, air bleeds, and jets for a good base setup. Metering block to main body gaskets were torn from packaging, but for the overall price still pleased with the product. Possibly the most bang for the buck in upgrading your carb.
    Date published: 2016-01-18
    Rated 5 out of 5 by from Excellent quality and fit. Always a pleasure to deal with jegs.i have been buying from jegs for 25 years. Always a pleasure.
    Date published: 2016-01-02
    Rated 5 out of 5 by from Best carb I've owned The 750 hp works period. I tried the newer blacked out version with dissapointment. Couldn't get the hesitation out. This earlier version works great!
    Date published: 2015-09-27
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    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations