Wiseco K0422X145 Chevy LS 4.145 in. Bore Forged Piston Kit 3.900 Stroke 0.927 in. Pin

Manufacturer

Part Number

K0422X145

5 reviews

Sale Price

$1,122.99

Estimated ship date Thursday, November 26

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Show details for Wiseco K0422X145 Chevy LS 4.145 in. Bore Forged Piston Kit 3.900 Stroke 0.927 in. Pin

Wiseco K0422X145 Chevy LS 4.145 in. Bore Forged Piston Kit 3.900 Stroke 0.927 in. Pin — image 1

Product Details

The Wiseco K0422X145 is a forged piston kit engineered specifically for Chevrolet LS engines built around a 3.900-inch stroker combination. Featuring a 4.145-inch bore and 0.927-inch wrist pin diameter, these pistons are purpose-built for high-performance and race applications where strength, precision, and reliability are non-negotiable.

Key Features:

3.900 Stroke Optimized: Rod pin placement is specifically designed for the 3.900-inch stroke rod angle, reducing bore distortion, crank and rod stress, and helping maintain a consistent ring seal
4.145 in. Bore Diameter with a 0.927 in. wrist pin for precise fitment in LS stroker builds
2618 Forged Aluminum Construction: Engineered, forged, and machined in the USA for improved tensile strength and durability under severe-duty conditions
ArmorGlide® Skirt Coating: Seizure-resistant, friction-reducing coating promotes quieter operation and extends skirt and cylinder wall life
Dedicated LS Forgings: Engine-specific strutted design maximizes the strength-to-weight ratio for optimal performance
Horizontal Slot Pin Bore Oiling: Maintains optimal wrist pin and small-end bearing lubrication, critical for long service life in high-output applications
Premium Ring Package Included: Kit comes complete with high-quality rings ready for assembly
Made in the USA at Wiseco's Mentor, Ohio manufacturing facility

Wiseco's Professional Series LS piston kits are designed for serious engine builders pursuing heavy to severe-duty race builds — from power adder street/strip engines to dedicated competition platforms. Each piston is machined on cutting-edge CNC equipment to exacting tolerances, ensuring consistent performance across all eight cylinders.

Products specifications

Piston Quantity

Rod Length

6.125

Wrist Pin Style

Floating

Make

Chevrolet

Piston Material

2618

Wrist Pin Outer Diameter

0.927

Engine

Stroke

3.900

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Bore Diameter

4.145

Compression Height

1.165

Industry

Automotive

Product Market

Domestic

Engine Type

ICE

Product Series

Professional

Product Type

Engine Piston Set

Forging Type

Strutted

Out of Stock Message

Estimated Shipped Date 3-4 Weeks

Piston Volume

-12.00

EBAY Category ID

33623

Engine - Web

Make - Web

Chevrolet

Ring Set Included

Yes

Skirt Coating

Yes

Wrist Pin Included

Yes

Second Compression Ring Thickness

1/16

Top Compression Ring Thickness

1/16

Wrist Pin Material

H13

Oil Ring Thickness

1/8

Title

Wiseco - Chevrolet, LS, 4.145 in. Bore, Piston Set of 8

Title - Web

Professional Chevy LS Piston Set of 8 - 4.145 in. Bore - 1.165 .in CH, -12.00 CC

Great products and service. Fast delivery

Mike Buchmann S

Initially I found the parts I needed but I had to make sure they were actually in stock so I sent an email. I got a reply back quickly verifying the parts were indeed in inventory so I placed the order. The parts were shipped and I got the tracking number and came quick. So I have nothing but good things to say about this order with THMotorsports.

Steve

Good phone support

Nate N

SO FAR SO GOOD!! I'VE LOOKED EVERYWHERE FOR THIS SPECIFIC BELT FOR MY SUPERCHARGER AND HAVE HAD NO LUCK!!

Ricardo C

Perfect

Larry S

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