Ultimate Performance | Holley Double Pumper Carburetor | 850 CFM | Square Bore | Manual Choke | Mechanical Secondaries

Ultimate Performance | Holley Double Pumper Carburetor | 850 CFM | Square Bore | Manual Choke | Mechanical Secondaries

Holley Performance
New
MPN:
0-4781S
UPC:
090127427477
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Description

Important: Product images may not represent the actual item and may include generic, demonstrative, or compatibility examples. Please carefully review the product title, description, and specifications to understand what is included in your purchase.

Note: Carburetor, Double Pumper ® Model 4150 ™, 4 Barrel, 850 Cubic Feet Per Minute (CFM), Square Bore Flange, Manual Choke, Mechanical Secondaries, Gasoline, Shiny Zinc

Vehicle Fitment

  • 1900-1900 Chevrolet Big Block 1965-1990 Gen IV
  • 1900-1900 Chevrolet Big Block 1991-1995 Gen V
  • 1900-1900 Chevrolet Small Block 1955-1986
  • 1900-1900 Chevrolet Small Block 1987-1998 (OE Roller)
  • 1900-1900 Chevrolet Small Block 383
  • 1900-1900 Ford 429-460
  • 1900-1900 Ford Small Block 221-351W
  • 1900-1900 Ford Small Block 347
  • 1900-1900 Oldsmobile V8 260-455
  • 1900-1900 Pontiac V8 326-455

Key Features

  • Mechanical Secondary's For Additional Fuel Under Initial Acceleration-Awesome Tire-Turning Performance For Lightweight Vehicles And Vehicles With Manual Transmissions Or Low Gearing
  • Power Valve Blow-Out Protection For Trouble-Free Operation
  • Manual Choke For Easy Control Of Engine Warm-Up
  • Center Hung Floats Provide Stable Fuel Control Under Performance Conditions
  • Dual Feed Fuel Inlets For Constant High Volume Fuel Delivery
  • Dual Metering Blocks Allow Fine Tuning Of Primary And Secondary Jetting
  • 100 Percent Wet-Flow Tested And Calibrated
  • Limited 90 Day Supplier Warranty

Technical Details

  • Condition: New
  • Recommended Use: Automotive Street
  • CFM: 850
  • Number Of Barrels: 4
  • Secondary Type: Mechanical
  • Fuel: Gasoline
  • Flange Style: Square Bore
  • Fuel Inlet: Dual
  • Finish: Zinc Chromate
  • Choke Type: Manual
  • Emissions: 49 State Legal
  • EGR: Without EGR
  • Includes Gaskets: No
  • Vehicle Fit List: Chevrolet Big Block 1965-1990 Gen IV 00, Big Block 1991-1995 Gen V 00, Small Block 1955-1986 00, ...
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