SKU: 88510833670

Holley 850 CFM Four Barrel Aluminium Street HP Carburettor (HO0-82851SA)

Sale price$837.90 Regular price$931.00
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

Holley 850 CFM Four Barrel Aluminium Street HP Carburettor (HO0-82851SA)HO0 82851SA HOLLEY 850 CFM DP ALLOY 4150 HP Mechanical Secondaries Part Number: HO0 82851SA Holley is proud to introduce the all new Aluminium 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 aluminium 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

HO0-82851SA - HOLLEY 850 CFM DP ALLOY

4150 HP Mechanical Secondaries

Part Number: HO0-82851SA

Holley is proud to introduce the all new Aluminium 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 aluminium 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. A street HP base plate is used so there are plenty of vacuum ports for power brakes, PCV, etc.
The Aluminium 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:
Aluminium 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.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 88510833670

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4.4 ★★★★★
Based on 8 reviews
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Tom Armstrong
Phoenix, US
★★★★★ 4
Not as Firm as I had hoped
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
A good pillow. However, there is quite a difference between the manufacturer's and my idea of "medium firmness". I found this pillow much softer than I had anticipated. I'll have to go for firmer for my next purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2025
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Verified Purchase
Computerized Nurse
Lexington, US
★★★★★ 5
I admit when I was wrong.
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
3/29/26 - I took the pillows and put them in my dryer on steam refresh for the default 10 minute cycle. OMG - they fluffed up and evened out to be soft and comfortable, no lumps whatsoever. If you like a soft pillow with some support, but not firm support, THIS is what you want. I am truly amazed. ================================================== Previous review---They arrived in a vacuum seal bag. When you cut the bag and they inflate, they inflate lumpy like. Some areas are thick and some have to fill so, not very good. I am going to try washing them and drying them to see if they fluff up better. Will post the results in a day or two.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
K
Verified Purchase
K
Pawtucket, US
★★★★★ 3
Immediate neck and back pain
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
Nice full pillows that holds its shape, BUT was NOT good head and neck support. I noticed an immediate difference. From non existent to growing neck pain in the first night’s use, through the week.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
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Verified Purchase
Geydis Amador
Omaha, US
★★★★★ 5
Soft and comfortable
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
These pillows are incredibly soft and comfortable. They provide great support while still feeling plush and cozy. I’ve been sleeping much better since I started using them.
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Reviewed in the United States on June 2, 2026
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Verified Purchase
Alan M
Lake Worth, US
★★★★★ 5
Comfortable, Hypoallergenic, and Great Value
Size: King (Pack of 2), Style: Soft, Configuration: Pillow
These pillows are a solid upgrade for everyday sleep. They’re soft but still provide enough support for both back and stomach sleeping, and the down-alternative fill is perfect if you’re sensitive to allergens. The microfiber cover feels smooth and well-made, and they fluff up nicely after decompressing. Overall, a comfortable and affordable set that gets the job done.
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Reviewed in the United States on March 22, 2026

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