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V-Twin Series Harley-Davidson BUELL S1, WHITE LIGHTNING - S3/S3T, THUNDERBOLT - 101HP w/ THUNDERSTORM HEADSPiston Kit

Part Number 161950 (132899069)
UPC: 193564026989
Package contents: 1 Each per Box
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MADE IN USA
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Description

As the leader in forged racing pistons, JE Pistons has been at the forefront of V-Twin and Harley-Davidson piston performance for decades, with over 75 years of experience. JE's carefully developed line of V-Twin pistons is engineered, forged and machined 100 percent in the USA and are designed for each specific engine and use application to provide the ultimate combination of durability and performance. From fun and powerful cruisers to all-out V-Twin drag racing, JE Pistons' performance is proven with every handful of throttle. Equip your bike with the best in forged pistons.

JE pistons are all designed, forged, and machined in-house, allowing control over every step of the piston-making process. JE Pistons 7+ decades of experience in high-level racing has led to offering premium racing features, including full billet construction, EN plating, and purpose-designed coatings, to name a few.

Features & benefits

  • Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
  • Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
  • Designed specifically for each engine and use application to provide optimized performance durability
  • Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings
  • Designed specifically for Harley Davidson/ Buell S1, S3, and S3T Engines. to provide optimized performance durability
  • Made 100% in the USA
  • Accumulator Groove: A specialty groove between the top and second ring provides added volume for blow-by gases. This helps reduce pressure between the rings, improving top ring seal and minimizing ring flutter at high cylinder pressures.
  • Contact Reduction: Reduce the amount of contact area against the cylinder wall when the piston "Rocks over". Contact reduction also serves to disrupt the flame travel into the crevice area causing a reduction in detonation.
  • Pin Fit: The pin bore is precision honed to attain an exact pin clearance. Clearances typically range from .0003 to .0010 between the wrist pin and pin bore.

Specifications

2nd Groove Width 0.064 in
3D Undercrown Milling No
Accumulator Groove Yes
Anodize Top Ring Groove No
Bore Diameter 89.10 mm
Color White
Combo 2 No
Compression Height 1.2
Compression Ratio Actual 10.00:1
Contact Reduction Yes
Country Of Origin USA
Cylinder Head SPORTSTER
Double Pin Oilers No
DVGP No
Econo Undercrown Milling No
EN Plating No
Engine HARLEY
Engine Type ICE
Exhaust Angle 27
Exhaust Depth .160
Forging Type Round
Gas Distribution No
Intake Angle 27
Intake Depth .160 in
Lateral Gas Ports No
Mill Undercrown No
Oil Groove Width 0.15900 in
Oil Ring Thickness 0.159 in
Pin Fit Yes
Piston Average Weight 336 gr
Piston Head Type Dome
Piston Material 2618
Piston Series JE Pistons
Piston To Wall Clearance -0.0015 in
Piston Volume 0.00 cc
Product Market V-Twin
Product Type Engine Piston Kit
Ring Set - Recommended J140F1-3508
Ring Set Included Yes
Ring Set Part Number J140F1-3508
Second Compression Ring Thickness 0.0640 in
Skirt Coat No
Smooth Crown Finish No
Thermal Crown No
Top Compression Ring Thickness 0.0640 in
Top Groove Width 0.06400 in
Tuff Skirt No
Ultra Dome No
Ultra Groove No
Ultra Groove Plus Gas Port No
Vertical Gas Ports No
Wrist Pin Length 2.500 in
Wrist Pin Material 5115 Low Carbon Steel, Case Hardened
Wrist Pin Outer Diameter 0.792 in
Wrist Pin Wall Thickness 0.140 in

Warranty

30 Months

California residents

WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.

Carb Status

California carb status to be completed

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