80 Carter Drive
Guilford, CT 06437-2116
Phone: (203) 453-6571
Tech Line: (203) 458-0542
Fax: (203) 453-6906

Copyright © 2002 Moroso Performance Products, Inc.
All Rights Reserved.

FUEL SYSTEM EQUIPMENT


Carburetor Mounted 2300/4100 Series



No. 64927
No. 64927

  • The answer to your throttle return spring linkage problems if you're running a 2300/2305 series two-barrel or 4150/4160 series four-barrel Holley® carburetor
  • Designed and built rugged enough for competition, yet it's polished chrome finish is suitable for the finest show car
  • Includes one set of heavy and one set of light springs

No.Description/Application
64927 Throttle Return Spring Kit, 2300/4100 Series Holley®, Carb Mount
instructions
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Throttle Return Springs
 

No. 64929
No. 64929

  • Pack of two stainless steel springs can be used as spares or replacements for Moroso Throttle Return Spring Kit Nos. 64925, 64926 and 64928

No.Description/Application
64929 Throttle Return Springs
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Manifold Mounted Chevy V6/V8



No. 64922
No. 64922

  • Provides positive throttle return required by several sanctioning bodies
  • Each kit fits Holley® 2 or 4 bbl single carb applications
  • Includes one set of return springs

No.Description/Application
64921 Throttle Return Spring Kit, Fits SB-2 Intake Manifold
64922 Throttle Return Spring Kit, 18° Small Block Chevy Cylinder Heads, Manifold Mount. 5-7/16" Tall
64925 Throttle Return Spring Kit, Small Block and 90° V6 Chevy, Manifold Mount. 1-13/16" Tall
64926 Throttle Return Spring Kit, Big Block Chevy, Manifold Mount. 1-13/16" Tall
64928 Throttle Return Spring Kit, Tall Version to facilitate throttle return on spacer equipped Small Block and 90° V6 Chevy engines, Manifold Mount. 4-3/4" Tall
instructions 64925 & 64926
instructions 64928
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Carburetor Linkage Bushing Set
 

No. 64920
No. 64920

  • Steel linkage bushing set allows the fitting of a 1/4" fastener to the 1/2" dia. hole found in the throttle linkage plate of Holley® four barrel carbs
  • Split bushing design permits simple installation and eliminates the sloppiness present when rubber bushings are used
  • Gold iridite steel finish

No.Description/Application
64920 Carburetor Linkage Bushing Kit, Holley® 4 bbl carbs
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Carburetor Mounted 4500 Series



No. 64923
No. 64923

  • Clears most air cleaner combinations and can be used with dual carbs
  • Made from sturdy 14-gauge steel and finished in hand-polished chrome
  • Kit includes heavy and light sets of stainless steel return springs, all mounting hardware, and complete installation instructions

No.Description/Application
64923 Throttle Return Spring Kit, Holley® 4500, Carb Mount
instructions
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4500 Dominator & King Demon
 

No. 64918
No. 64918

  • Fits a 4500 series and King Demon carburetors
  • Made from sturdy 12-gauge steel and finished in (electrostatic paint) E-coat satin black
  • Kit includes heavy and light sets of stainless steel return springs, all mounting hardware and complete installation instructions

No.Description/Application
64918 Throttle Return Spring Kit, 4500 Dominator and King Demon Carb Mounts.
instructions
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4150 Holley® Series
Including New HP Series
 

No. 64919
No. 64919

  • Made to clear low-profile racing air cleaners, Moroso Nos. 65860, 65870, 65900, 65901, 65902, 65903, 65908 & 65910
  • Manufactured from sturdy 12-gauge steel and finished in (electrostatic paint) E-coat satin black
  • Kit includes heavy and light sets of stainless steel return springs, all mounting hardware and complete installation instructions

No.Description/Application
64919 Throttle Return Spring Kit, 4150 Holley® Series Carb including new HP Series
instructions
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