Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
Speedway Motors Logo
America's Oldest Speed Shop ®


Holley 4150 Aluminum Float Bowl Kit

SAME DAY SHIPPING! Most orders ship within 24 hours.

Material Type:
Sold in Quantity:
Gasket(s) Included:
Hardware Included:
Holley 4150 Aluminum Float Bowl Kit
Holley 4150 Aluminum Float Bowl Kit
Holley 4150 Aluminum Float Bowl Kit
Holley 4150 Aluminum Float Bowl Kit

Click image to enlarge

Please NOTE the following about this product:

  • This item is sold as a pair.



Q & A

What's in the Box

These lightweight aluminum center-hung fuel bowls have glass sight windows for easy float adjustments. They fit Proform, Quick Fuel and Holley double pumper carburetors.

Kit includes two fuel bowls, gaskets and anodized fuel inlets.

You may also be interested in:

Moroso 65221 Fuel Level Control Kit
(Part #54565221)

This fuel level control kit from Moroso increases bowl capacity by 40% to eliminate fuel starvation problems.  Foam baffles prevent fuel slosh to eliminate the chance of the jets being uncovered under hard cornering, braking or acceleration.  Fits Holley 2 and 4 bbl carbs with metering blocks and removable jets. Does one end of a Holley carb.

Kit contains one float bowl spacer, four foam baffles, one accelerator pump arm, four 3-1/4" float bowl bolts, two float bowl gaskets and four nylon float bowl screw gaskets.

545-65221 Instructions (PDF) 

Holley 135-7 50cc Accelerator Pump Diaphragm
(Part #4271357)
                        Holley accelerator pump diaphragms are available in 30cc (427-1355) or 50cc (427-1357) sizes. For use with gasoline only.
Holley 116-3 Center Hung Carburetor Float
(Part #4271163)
                        These Holley replacement Nitrophyl carburetor floats are for center hung float bowls.
Holley 34-7 Adjustable Needle and Seat Hardware Kit
(Part #427347)
                        Replacements for the pieces that leak or wear out.
Wehrs Machine WM47 Carburetor Feet
(Part #91689402)
                        Bolt to the base of your carburetor so you can work on it without damaging the throttle assembly.
  • 5/16”-18 threads
  • 1-1/2” tall
  • Set of 4 (nuts included)