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Rebuild Kit Holley 4360 Carb 450 Economaster Spreadbore Mech Secondary 450 CFM

Part Number: KH4
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This high-performance rebuild kit suits the Holley 4360 spreadbore 4BBL carburetor with mechanical secondaries, rated at 450 CFM. Perfect for muscle car restorations, hot rod builds, or maintenance of factory-fitted units on GM V8 engines from the late '60s to mid-'70s.

Compatible with many 450 CFM Holley carburettors as shown in the reference list (see images), this kit includes ethanol-safe materials and all necessary components to complete a full overhaul.




  • Suits Holley 4360 Spreadbore Carburettors - Designed for 4-barrel, 450 CFM mechanical secondary high-performance models.


  • Built for Performance Applications - Ideal for Chevrolet and Pontiac V8 engines, including cars and trucks.


  • Complete Overhaul Kit - Includes all essential gaskets, seals, and pump components to restore fuel flow, throttle response, and idle quality. Replaces Fuelmiser HY362


Vehicle Applications:




  • Chevrolet V8: 327, 350, 400, 427, 454ci (1975"76)


  • Chevrolet V8 Trucks: 350, 396, 400, 454ci (1968"76)


  • Pontiac V8: 350, 455ci (1967"72); 400, 455ci (1975"76)


Carburettor Type:
Holley 4360 - 4 Barrel, Spreadbore Base, 450 CFM, Mechanical Secondaries


Always match your Holley list number before purchasing to confirm compatibility.

$ 131.95 $ 131.95

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