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Ultra XP Aluminum Fuel Bowl Kit - Tumble Polished

Ultra XP Aluminum Fuel Bowl Kit. Fits models 4150, 4160 & 4500. (Will require a .250" longer fuel line). Tumble Polished finish

Part # 134-78S Be the first to write a review
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Ultra XP Aluminum Fuel Bowl Kit. Fits models 4150, 4160 & 4500. (Will require a .250" longer fuel line). Tumble Polished finish


  • use of o-ring fittings
  • Bowls use standard/traditional floats, float hangers, screws, accelerator diaphragms, etc.
  • Features “Clear Pyrex” sight windows on both sides of bowl
  • Fuel “trough” designed in floor of bowl to route fuel directly to jets & assists to keep jets covered
  • Internal baffling cast into bowl
  • 20% more fuel capacity vs. traditional V-Bowls, eliminates fuel starvation & provides consistent air/fuel ratios
  • Fuel shelf to greatly minimize fuel aeration & promote more consistent metering
  • A threaded drain plug has been incorporated into the bowl
  • Bowls offer contoured fuel entry for smooth fuel flow directly to needle & seat assembly
  • Bowls can be plumbed from either side
  • Material added to key areas (needle & seat, fuel inlets, sight window) for added strength in demanding race environments
  • drain plug
  • dual sight windows
  • baffling
  • Increased capacity
  • Fuel bowl has 3/4 -16 fuel inlet threads (uses -8 Viton O-ring type fittings) Will not accept standard steel fittings

About Holley

Holley Performance Products has been the undisputed leader in fuel systems for over 100 years. Holley's products include carburetors, fuel pumps, fuel injection, intake manifolds, and much more. From start to finish, Holley has the parts to make your dream a reality.

Brand Holley
Emission Code5
Fuel Bowl StyleCenter Hung
Product TypeReplacement Fuel Bowl Kit
WarrantyLimited 90 Day
Part Number134-78S

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Must re-use existing hardware during installation.
Limited 90 Day: See Details

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