Wiseco K398X1 Professional Series Forged Piston Kit 4.010" Bore for Chevrolet LS Engines

Manufacturer

Part Number

K398X1

11 reviews

Sale Price

$982.99

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Show details for Wiseco K398X1 Professional Series Forged Piston Kit 4.010" Bore for Chevrolet LS Engines

Wiseco K398X1 Professional Series Forged Piston Kit 4.010" Bore for Chevrolet LS Engines — image 1

Product Details

The Wiseco K398X1 Professional Series Piston Kit is engineered for high-performance Chevrolet LS engine builds requiring a 4.010-inch bore diameter. These forged aluminum pistons feature a flat-top design with two valve reliefs and a -3.2cc chamber volume, making them ideal for street and performance applications.

Key Specifications:

Bore: 4.010 inches (101.854mm)
Compression Height: 1.304 inches
Pin Diameter: 0.927 inches
Rod Length: 6.098-6.125 inches
Stroke: 3.622 inches
Piston Material: Forged 2618 aluminum alloy for superior tensile strength
Chamber Volume: -3.2cc with valve reliefs

Complete Kit Includes:

8 forged pistons with flat-top design
Premium piston rings (1.2mm, 1.2mm, 3.0mm configuration)
Wrist pins (0.927" diameter, press-fit or floating style)
Wrist pin retainers

Professional Series Features:

ArmorGlide skirt coating for friction reduction and improved wear resistance
File-fit rings for precise gap adjustment
Gas nitrided top ring with steel construction
Phosphate coated cast iron second ring
Accommodates reluctor ring on stroker cranks without notching
Offset pins and skirt shapes optimized for street applications
Successfully tested in high-horsepower applications

Engineered, forged, and machined in the USA at Wiseco's Mentor, Ohio facility, these pistons represent over 80 years of racing heritage and manufacturing excellence. The Professional Series delivers maximum horsepower, minimized friction, and exceptional durability for demanding LS engine builds. Note: Requires aftermarket connecting rods.

Products specifications

Piston Quantity

Rod Length

6.125

Stroke

3.622

Wrist Pin Style

Floating

Make

Chevrolet

Piston Material

2618

Wrist Pin Outer Diameter

0.927

Engine

Prop 65

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

Bore Diameter

4.010

Compression Height

1.304

Industry

Automotive

Product Market

Domestic

Engine Type

ICE

Oil Ring Thickness

3.0

Wrist Pin Material

5115

Product Series

Professional

Product Type

Engine Piston Set

Forging Type

Strutted

Out of Stock Message

Estimated Shipped Date 3-4 Weeks

Second Compression Ring Thickness

0.047

Top Compression Ring Thickness

0.047

EBAY Category ID

33623

Engine - Web

Make - Web

Chevrolet

Ring Set Included

Yes

Skirt Coating

Yes

Wrist Pin Included

Yes

Piston Volume

-3.20

Title

Wiseco - Chevrolet, LS, 4.010 in. Bore, Piston Set of 8

Title - Web

Professional Chevy LS Piston Set of 8 - 4.010 in. Bore - 1.304 .in CH, -3.20 CC

You have excellent services

lesly m

easy to use

Rolando P

Thanks!

jack m

Shipping seems to high it does concern me for future purchases.

Gary T D

Quick and easy

Nicola C

so far so good

zach j

Item was as described and shipping was fast enough. Packing was a little loose and item had come out of the original package and was loose in the shipping box

alright I guess.

Roger G

It was easy to find what I needed and affordable

Melissa J G

quick and easy to navigate and transaction

Anonymous Customer

Easy

Jay

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