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  • 7862


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    • Shipping Weight: 2.5lbs
    • Manufactured by: BLP

    For Holley 0-4776 600CFM Carburetor

    This kit is designed to check the Holley series 600CFM carburetor. All of the test gauges are
    of the "NO-GO" design which means if the gauge fits into or over the item being checked, the
    carburetor is illegal. The kit consists of the following gauges:

    78621P Primary Venturi Gauge - This gauge will fit around the booster from the top and should not go into the venturi. This would also be a good time to check the venturi bore to see if it has elongated of "Egg-Shaped". This condition will be easy to spot at
    this time, as the gauge will not go in but you can see light around the front and backside of the gauge showing the venturi has been altered. Do not question a slight imperfection, as a cheated up venturi will be easy to spot.

    78621S Secondary Venturi Gauge - This gauge is used in the same manner as the

    and this will check the secondary side of the carburetor.

    78622 Throttle Bore Gauge - This tool should not go into any of the throttle bores.

    78623P Combined Throttle Shaft and Plate Gauge

    78623S Combined Throttle Shaft and Plate Gauge - This gauge should not go overthe throttle shaft and plate combined.

    78594 Booster Length Gauge - This gauge will go into the venturi and check the height or length of the booster. If it fits over the booster has been altered.

    78595 Booster I.D. and O.D. Gauge - This gauge can be used from the top. One end will check the O.D. and the other will check the I.D. The I.D. is where some will alter to get more air by the booster. If the gauge will fit into the booster it has been altered.

    78596 Booster Bottom O.D. Checking Gauge - Turn the carburetor upside down and open the throttles. You will now have room to insert the gauge at an angle to check the booster outside diameter at the bottom of the booster. If the gauge goes over the booster at any point the booster has been altered. This is the most common alteration of the 600 carburetor and power gains of up to 10HP are common by
    tapering the booster below the .615 allowed. NOTE: The booster has a normal taper by design but should not be less than the gauge of .615. This is a very important area to check.

    Venturi Bore Pri     1.248 - 1.252    
    Booster Length     .720 (+ or -) .010
    Venturi Bore Sec     1.310 - 1.314    
    Booster cross leg width     .220 - .226
    Booster O.D. at parting line     .626 - .630    
    Throttle Bore Pri and Sec     1.561 - 1.562
    Booster O.D. at top and bottom     .614 - .618    
    Combined Throttle Shaft & Plate, Pri     .2075 - .2205
    Booster I.D.     .442 - .446    
    Combined Throttle Shaft & Plate, Sec     .2240 - .2370
    Booster leg pin gauge     .117    

    BLP Racing Products, LLC. Is not responsible for errors with photography, typographical content or pricing and are subject to correction and/or change without notice.

    This product was added to our catalog on Friday 25 June, 2010.

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