Holley 0-82851SA - 850 CFM Aluminum Street HP Carburetor - 850 CFM Aluminum Street HP Mechanical Secondary-4150
SKU: 99310928473

Holley 0-82851SA - 850 CFM Aluminum Street HP Carburetor - 850 CFM Aluminum Street HP Mechanical Secondary-4150

Sale price$359.98 Regular price$399.98
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Holley 0-82851SA - 850 CFM Aluminum Street HP Carburetor - 850 CFM Aluminum Street HP Mechanical Secondary-4150Overview: Tire smoking performance has never been so affordable! The all new Aluminum Street HPs weigh up to 40% less and are even easier on your wallet. Holley is proud to introduce the all new Aluminum Street HP. They utilize the best features from Holley's Race Bred 4150 HP carbs, but are tamed for street and light competition use. The Street HP features an aluminum contoured main body design taken from the race winning 4150 HP and has a tumble

Overview:

Tire smoking performance has never been so affordable! The all new Aluminum Street HPs weigh up to 40% less and are even easier on your wallet. Holley is proud to introduce the all new Aluminum Street HP™. They utilize the best features from Holley's Race Bred 4150 HP™ carbs, but are tamed for street and light competition use. The Street HP features an aluminum contoured main body design taken from the race winning 4150 HP™ and has a tumble polished shiny finish and screw in air bleeds for precision tuning capabilities. The metering system includes a timed spark port for a vacuum advance distributor and is calibrated for a hot street/strip engine setup for outstanding throttle response, drivability and maximum performance. The Aluminum Street HP takes all the great features from the race bred HP and the Double Pumper and combines them into the perfect street/strip carburetor.
 

Features:

  • Aluminum construction for weight savings and long lasting good looks
  • Optimized street/strip calibration for outstanding throttle response and drivability
  • Contoured venturi inlet offers balanced airflow for increased horsepower
  • Screw in air bleeds for precision tuning capabilities
  • Four corner idle for precise idle control
  • Mechanical secondaries for awesome tire turning performance
  • Dual accelerator pumps for additional fuel under initial acceleration
  • Dual feed fuel inlets for constant high volume fuel delivery
  • Available in 650, 750, 850, and 950 CFM versions
  • Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
  • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
  • Compatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required.

 

Application:

Year Make Model Submodel Engine Size
Universal

 

Specs:

Barrels 4
Booster Down Leg
Brand Holley
Carburetor Use Performance and Race
CFM 850
Choke None
Condition New
Emission Code 3
Finish Shiny
Fuel Gasoline
Marine Use No
Material Aluminum
Model 4150
Primary Main Jet 80
Primary Power Valve 4.5
Primary Pump Nozzle Size 28
Product Type 4150 Model Carburetor
Secondaries Mechanical
Secondary Main Jet 80
Secondary Pump Nozzle Size 28
Supercharged Application No
Throttle Bore 1.688 inch
Venturii Size 1.563 inch
Warning California Proposition 65
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99310928473

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Kat and Cain
Port Orchard, US
★★★★★ 5
Great
Works great, as long as you don’t lean of one edge too much
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Reviewed in the United States on May 18, 2026
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77' Granada
Lexington, US
★★★★★ 5
Good roller
Sturdy and strong. Rolls smooth. I used it to put down sound deadener in my classic car. Sometimes you think cheap is cheap but this is a good one.
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Reviewed in the United States on April 12, 2026
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shirley durham
San Leandro, US
★★★★★ 5
Great value great quality.
Very good quality made and very good price.
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Reviewed in the United States on May 26, 2026
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Kev
Battle Creek, US
★★★★★ 5
Makes For Quiet Rides
Model: 10 SqFt(0.95 SqM)
Comparable quality and performance to name brand competitor. It sticks on strong, easy to apply, and does make a difference in sound reduction. Turn your hollow shell sounding vehicle panels into solid sounding walls.
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Reviewed in the United States on March 15, 2026
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Troy Amhaz
Massapequa, US
★★★★★ 5
Must for subwoofers. True 2mm spec. High quality.
Model: 36 SqFt(3.4 SqM), Model: 36 SqFt(3.4 SqM)
Let me start of by saying WOW! This made a huge difference in the SQ of my L7S pushing 930w rms. Before I had major rattles in my 2020 Honda Civic SI. Taking the time to do this to my trunk and Lid made me realize just how loud my subwoofer actually is. It literally eliminated the rattles throughout my whole car. I still plan on doing this to my doors and rear deck but once I upgrade the speakers. I still have half of the box just doing the trunk and lid so 1 box of 36sf will be enough for most of the areas that need to get done. You may need a little more overall. This is true 2mm spec. Very sticky and easy to apply. It just take time to finish the work correctly and roll it down. It is not as heavy as I thought it was going to be. The size of the sheets are perfect for what you need to do. The value is on point for the quality. It does not rip very easily but you can cut it to size without any problems. Again, This is a must buy for anyone who is pushing 1000w rms or more.
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Reviewed in the United States on November 29, 2025

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