Outdated Internet Browser Detected

It appears that the Internet Browser you are using to connect to SummitRacing.com is outdated and insecure. To continue to use SummitRacing.com, you must upgrade your browser to a newer, secure version. Use these links to help you upgrade your browser.

In-Store Pickup Location Close

Holley Aluminum Ultra XP Carburetors 0-80804HB

Get Free Shipping with Your Order over $99!

Carburetor, Ultra XP, Race, 850 CFM, 4-Barrel, Grey Body, Black Anodized Metering Blocks, Each

Estimated Ship Date: Monday 11/24/2014 Would you rather pick it up? Select Location

  • Order this item and get free delivery and handling on your entire order! Oversize fees also waived on this item. Valid on orders shipped in the contiguous United States.

Brand: Holley
Manufacturer's Part Number: 0-80804HB
Part Type: Carburetors
Summit Racing Part Number: HLY-0-80804HB

UPC: 090127671023
CFM: 850
Fuel: Gasoline
New or Remanufactured: New
Number of Barrels: 4
Carburetor Flange: Holley 4150/Dominator
Choke: None
Secondary Type: Mechanical
Fuel Inlet: Dual
Primary Jet Size: 84
Primary Power Valve (Hg): 4.5 Hg
Primary Discharge Nozzle Size (in): 0.031 in.
Secondary Jet Size: 84
Primary Outer Air Bleed Sizes Included: 67
Primary Inner Air Bleed Sizes Included: 34
Secondary Discharge Nozzle Size (in): 0.031 in.
Secondary Power Valve: 4.5
Secondary Outer Air Bleed Sizes Included: 67
Secondary Inner Air Bleed Sizes Included: 34
Carburetor Finish: Gray anodized
Ford Kickdown: No
Booster Type: Down-leg
Throttle Linkage Type: Universal
Quantity: Sold individually.
Notes: Billet aluminum black anodized metering blocks. -8AN O-ringed inlet threads. Come standard with -8AN o-ring to -6AN male adapter and -8AN plug. Can be plumbed from either side. Holley Ultra HP race carburetors are for race applications only and are not designed or suggested for street use. Ultra HP carburetors do not provide attachment points for street transmissions, vacuum outlets or stock throttle linkage and cables.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.
Calculator CFM Calculator

Holley aluminum Ultra XP carburetors feature all-new construction for maximum performance, right out of the box. They start off with a 6061-T6 billet aluminum black, bright-dipped anodized base plate. They feature elongated mounting holes, allowing for fitment in intake manifolds with a square 4150 or large Dominator-style flange. The base plates feature a dedicated, race-only throttle lever with all unnecessary street attachment points and tangs removed. A stainless steel adjustable secondary link offers you a choice of 1:1 or progressive secondary throttle actuation for ultimate control of the secondary opening rate. They also use knurled (hand-adjustable) primary and secondary curb idle screws, a capped primary throttle shaft, factory-machined mounting holes, and a throttle body and new secondary pump cam lever designed to provide positive throttle stop on the secondary side. On top of that, Holley uses an updated main body design with air bleeds moved outward to allow for a smoother transition of airflow from the top of the carburetors into the venturi. The integrated bypass valve eliminates the need for holes in the throttle plates, helping to maintain the correct plate to transfer slot relationship, as well as good idle control when using radical camshaft profiles. Also installed is a new contoured hex head squirter for streamlined airflow, and all unnecessary mounting bosses have been removed for a smoother, cleaner appearance. Next, they add 6061-T6 billet aluminum metering blocks with improved durability, true gasket sealing, and bright-dipped anodizing for corrosion protection. The blocks are fully adjustable (emulsion bleeds, power valve channel restrictors, and idle feed restrictors). Excess material has been removed for improved fuel capacity, an integrated pry point assists in disassembly from the fuel bowl and main body to prevent damage to the gaskets, and a new snap-in-place bowl vent whistle makes removal and/or replacement easier. Finally, they finish everything off with a totally new fuel bowl design. They have 20 percent more fuel capacity than traditional V-bowls, eliminating fuel starvation, while providing more consistent air/fuel ratios. The bowls have internal baffling to help control fuel slosh and minimize float level fluctuations in hard launching or cornering situations, and a fuel shelf built-in below the needle and seat to greatly minimize fuel aeration and promote better metering. Their unique fuel trough is designed into the floor bowl to route fuel flow directly to the jets and assist in keeping the jets covered by fuel. The specially made clear Pyrex sight windows are located on both sides of the fuel bowl, making fuel level adjustments safe and easy. The new bowl also uses a better positioned built-in drain plug to drain the fuel out of the bowl, and the contoured entry point provides XP smooth fuel flow directly to the needle and seat. These pieces combined make the Holley aluminum Ultra carburetors the perfect choice for your race-only application.

Warranty

Most Helpful Reviews Review this Product

1 Customer Reviews for Holley 0-80804HB - Holley Aluminum Ultra XP Carburetors

Average Customer Review

5 Star

(1)

4 Star

(0)

3 Star

(0)

2 Star

(0)

1 Star

(0)
+See All 1 Reviews

Great Carby,

Summit RacingSummit Racing Verified Purchase

Fitted it to my 383 chev and only had to make a small idle adjustment. Looks good and goes good. Unfortunately you have to pay for quality.

0 of 0 found this review helpful.

report abuse

Report Abuse Close

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: BARRY from Australia

Date: August 11, 2014

Appearance
Ease of Installation
Price/Value
Quality

Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

Back To Results
Email this page Close
Close