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Wiseco 90-01 Integra B18 81mm 8.2:1 Professional Series Forged Racing Piston Set
Part Number: K541M81AP

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Wiseco 90-01 Integra B18 81mm 8.2:1 Professional Series Forged Racing Piston Set
Part Number: K541M81AP

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$776.99 & Free Shipping

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Not legal for sale or use in California on any pollution controlled motor vehicles.
4 In Stock

Product Details

Part Number: K541M81AP
Brand: Wiseco
Bore: 81mm
Compression Ratio: 8.2:1
Includes Piston Rings: Yes
CARB Approved: No

The Wiseco Professional Series Honda B18 forged racing piston set is engineered for high-performance racing applications, offering exceptional durability and precision. Crafted from 2618 aluminum in the USA, these pistons deliver increased tensile strength necessary for demanding race environments. The set includes four pistons designed to optimize engine power and reliability in sport compact vehicles, with a bore diameter of 81mm and a compression height of 30mm. Each piston features a fully machined crown for precise compression and combustion efficiency, along with a force-fed pin oiling system to ensure reliable lubrication during intense driving conditions. The pistons are equipped with precision ring grooves, an anti-detonation groove, and advanced ring seal features to maximize sealing and minimize blow-by, contributing to improved engine performance and longevity. The ArmorGlide skirt coating reduces friction, suppresses seizure risks, and ensures quieter operation, making it suitable for severe duty applications. Built for racers and serious builders, these pistons are designed to withstand heavy-duty performance demands while maintaining optimal engine efficiency. The set is shipped fully assembled with premium rings, ready to install in your engine rebuild or upgrade project, providing an excellent balance of power, durability, and racing performance.

Features:

  • Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
  • Precision ring grooves, anti-detonation groove, and additional ring seal improving features
  • ArmorGlide skirt coating for seizure resistance, friction reduction, and quieter operation
  • Designed and built for heavy to severe duty racing and performance applications
  • Fully machined crown for precise compression and combustion efficiency
  • Forced pin oiling system for reliable lubrication during high-performance use
Specifications:
  • Product Type: Engine Piston Set
  • Product Series: Professional
  • Bore Diameter: 81.00 MM
  • Compression Height: 30.00 MM
  • Piston Volume: -12.00 CC
  • Piston Material: 2618
  • Skirt Coating: Yes
  • Forging Type: Strutted
  • Piston Quantity: 4
  • Ring Set Included: Yes
  • Top Compression Ring Thickness: 1.0 MM
  • Second Compression Ring Thickness: 1.2 MM
  • Oil Ring Thickness: 2.8 MM
  • Wrist Pin Included: Yes
  • Wrist Pin Material: 5115
  • Wrist Pin Outer Diameter: 0.827 IN
  • Engine Detail: Honda B18
  • Product Market: Sport Compact

Not legal for sale or use in California on any pollution controlled motor vehicles. See http://www.semasan.com/emissions for state by state emissions requirements.
There is a 5% cancellation fee if you order this product and want to ship it to the state of California.

Due to the manufacturer's price control policy, this item may be excluded from promotions and discounts

WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.

Vehicle Fitment

Acura Integra
1990 Acura Integra GS
1991 Acura Integra GS
1992 Acura Integra GS
1993 Acura Integra GS
1997 Acura Integra GS
1998 Acura Integra GS
1999 Acura Integra GS
2000 Acura Integra GS
2001 Acura Integra GS
1994 Acura Integra GS-R
1995 Acura Integra GS-R
1996 Acura Integra GS-R
1997 Acura Integra GS-R
1998 Acura Integra GS-R
1999 Acura Integra GS-R
2000 Acura Integra GS-R
2001 Acura Integra GS-R
1990 Acura Integra LS
1991 Acura Integra LS
1992 Acura Integra LS
1993 Acura Integra LS
1994 Acura Integra LS
1995 Acura Integra LS
1996 Acura Integra LS
1997 Acura Integra LS
1998 Acura Integra LS
1999 Acura Integra LS
2000 Acura Integra LS
2001 Acura Integra LS
1990 Acura Integra RS
1991 Acura Integra RS
1992 Acura Integra RS
1993 Acura Integra RS
1994 Acura Integra RS
1995 Acura Integra RS
1996 Acura Integra RS
1997 Acura Integra RS
1998 Acura Integra RS
1995 Acura Integra Special Edition
1996 Acura Integra Special Edition
1997 Acura Integra Type R
1998 Acura Integra Type R
2000 Acura Integra Type R
2001 Acura Integra Type R

Engine Fitment

Honda 1.8L/1797CC - 4 Cylinder (B18C1)
Honda 1.8L/1834CC - 4 Cylinder (B18B1)
Honda 1.8L/1797CC - 4 Cylinder (B18C5)
Honda 1.8L/1834CC - 4 Cylinder (B18A1)

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