SKU: 56243031138

4Piston Racing Ported B-series Oil Pump

Sale price$247.05 Regular price$274.50
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

4Piston Racing Ported B-series Oil PumpThe stock oil pump is a great piece for up to 9,000 rpm in drag racing and 8,000 rpm in endurance racing. Past that, there can be cavitation issues and oil pressure drops as temperatures rise. 4Piston Racing's ported pump increases flow by 25% and will allow continuous use above 9,000 rpm. The pump has been tested as high as 12,000 rpm with great success. 4Piston starts with a brand new OEM oil pump from Honda, disassemble, port and smooth oil

The stock oil pump is a great piece for up to 9,000 rpm in drag racing and 8,000 rpm in endurance racing. Past that, there can be cavitation issues and oil pressure drops as temperatures rise. 4Piston Racing's ported pump increases flow by 25% and will allow continuous use above 9,000 rpm. The pump has been tested as high as 12,000 rpm with great success. 4Piston starts with a brand new OEM oil pump from Honda, disassemble, port and smooth oil passages to increase flow. The pumps are then cleaned, oiled, reassembled and repackaged. This part is cheap insurance to protect your multi-thousand dollar investment.

Fits all B-Series Engines!

Add a 4P Rooster Ring to help with the install! Simply slide the Rooster Ring onto the crank snout, then slide the oil pump over it into place. It perfectly centers the pump, expands the lip seal and keeps it in the proper orientation helping it slide perfectly onto the crank. No more fighting it. Once you use it, you'll praise how this simple tool can make such a big difference.

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: 56243031138

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4.2 ★★★★★
Based on 21 reviews
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Beth
Omaha, US
★★★★★ 5
Absolutely Stunning!!!
Size: 60''x80'', Color: Ombré Silver Onyx
Gorgeous blanket. Very warm and so soft. The softest blanket I've ever owned. Love the color. It's very light (in weight) while laying under it making it so comfortable - and yet - very comfortably Warm! I live in the north east of the U.S. and nights can get very cold. This blanket is perfect! So beautiful. So soft. I love it! Thumbs Up!!!
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Reviewed in the United States on February 14, 2026
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Verified Purchase
Lynn Lewis
Battle Creek, US
★★★★★ 5
Luxury faux fir blanket
Size: 60''x80'', Color: Tipped Champagne Ivory
Can’t say enough about this beautiful, so soft well made blanket! The size is perfect laying on our king size bed. The BEST purchase. Love the soft color and NO shedding!
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Reviewed in the United States on December 28, 2025
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sarinana
Chelsea, US
★★★★★ 5
Keeps it shape and texture after washing
Size: 60''x80'', Color: Tipped Champagne Ivory
Slightly weighty but not heavy, soft, washable and keeps its shape and fluffy texture. Good throw blanket for beds or sofas. Warm and cozy blanket.
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Reviewed in the United States on November 16, 2025
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Melinda Sisk
Waukegan, US
★★★★★ 5
Comforting
Size: 60''x80'', Color: Natural Tan
Very soft, nice weight, long enough to cover whole body
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Reviewed in the United States on April 16, 2026
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Gracie
Boise, US
★★★★★ 5
Soft as Rabbits Fur🥰
Size: 60''x80'', Color: Ombré Silver Onyx, Size: 60''x80'', Color: Ombré Silver Onyx
The softest blanket. Feels like sleeping with rabbit fur. I did anticipate it being a little heavier and it was not but that is ok I love it non the less. Would recommend to anyone! I have not attempted to wash it yet as the last one I ruined washing so were gonna wait as long as possible before washing this one. I would def recommend not drying. It has a luxurious high quality feeling to it that keeps me thinking about it all day! It's not to thick therefore it its too hot but keeps you comfortably warm. Amazon offered a %20 discount at checkout. The Blanket ended up being cheaper than I thought it would be So far I've used it for a couple weeks and 0 signs of shedding! I use it on my bed as I don't want it to get ruined. I fold it up each morning and put it away. I ordered the 60×80it fits a twin sized bed. I love this size and won't order anything smaller.
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Reviewed in the United States on August 6, 2025

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