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Wiseco Chevy BB DRAG NITROUS 1.270CH Piston Shelf Stock

SKU: WIS6426BS

Pistons

WIS Single Pistons...

Wiseco Chevy BB DRAG NITROUS 1.270CH Piston Shelf Stock

SKU: WIS6426BS

Pistons

WIS Single Pistons...

A$332.73
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Wiseco Chevy BB DRAG NITROUS 1.270CH Piston Shelf Stock

Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco's Professional Series.

Additional Information

Wiseco Chevrolet Big Block Piston, 4.500 in. Bore, 1.270 in. Compression Height, 0.990 in. Pin Diameter, Professional, Set of 1.

Part Type

Engine Piston

Product Overview

World renowned for their work building race winning pistons, Wiseco utilizes experience from a diverse background of the most sophisticated engines in such venues as Formula 1, Indy Racing League (IRL), NHRA Pro Stock, Moto GP, AMA Superbike, AMA Motocross and Supercross to design and manufacture the highest technology pistons available.

*Features*
• Valve Pocket designs that allow maximum flow around valve, also allowing oversized valves and high lift cams to be utilized.
• Piston Crown shapes designed to promote maximum Intake Charge efficiency through scavenging mixture “Cross Flow” during intake and
exhaust valve overlap. More fuel and air equals more horsepower!
• Piston Domes designed for optimal quench during the compression/ combustion cycle, resulting in resistance to detonation and preignition.
The end result is longer engine life and increased horsepower potential.
• Precision machined ring grooves with proper orifice/accumulator volume feature calculated groove root diameters and axial widths, providing
excellent surface finish and flatness, maximum ring seal and minimized blow-by and oil consumption.
• World class, ISO Certified, forging facility that utilizes the latest technologies - Featuring complex forged shapes, advanced materials, and feature-aligned grain flow technology.
• Complex Piston skirt profiles that reduce power robbing friction, yet promote stability in the bore for optimum ring seal.

*ArmorGlide Skirt Coating*
Wiseco's new ArmorGlide skirt coating is the result of testing, development, and benchmarking through our in-house dyno program. The outcome - minimized friction, maximum horsepower, and improved wear resistance.

Not only is ArmorGlide a high-tech lubricant that reduces friction, but it also allows the piston to be fitted tighter within the bore than a non-coated piston. Better ring seal reduces noise from piston rock. ArmorGlide is being applied to selected pistons.


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 09:42:57

Data: v4.2 - Upd: 2026-11-09 08:05:56

Features

  • ArmorGlide Skirt Coating: seizure resistant, friction reduction, and quieter operation
  • Designed and built to withstand heavy to severe duty performance applications
  • Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
  • Forced pin oiling
  • Fully machined crown features
  • Precision ring grooves, anti-detonation groove, and additional ring seal improving features

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

(keyword: piston)

Important Note Regarding Nitrous & Pressurised Systems

Orders containing nitrous systems or other pressurised canisters may require additional handling and inspection prior to dispatch.

Due to the nature of these products and applicable transport and state regulations, each system is individually inspected, released, and purged where required to ensure compliance with air and road freight standards. While most orders ship within our normal timeframes, this process may occasionally result in slightly longer dispatch times than those advertised.

We do everything we can to minimise delays, and the vast majority of shipments move through without issue. If you are working to a tight deadline or require urgent delivery, please contact us prior to placing your order so we can confirm the most suitable options.

We appreciate your understanding and patience - this process ensures safe, compliant transport and delivery of your order.

(keyword: nitrous)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Bore Diameter:4.500
Bore:4.5
Category Hierarchy:Auto>Pistons>Individual Pistons>Domestic>Professional
Comp Height:1.27
Comp Ratio @ 110CC::1
Comp Ratio @ 114CC::1
Comp Ratio @ 119CC::1
Comp Ratio @ 123CC::1
Compression Height:1.270
Engine - Web:Big Block
Engine Type:ICE
Engine:Big Block
Forging Type:Full Round
Gram Weight:635
Industry:Automotive
Make - Web:Chevrolet
Make:Chevrolet
Part Number:wis6426BS
Piston Material:2618
Piston Quantity:1
Piston Volume:38.00
Product Market:Domestic
Product Series:Professional
Product Type:Engine Piston
Ring Set Included:No
Skirt Coating:Yes
Title - Web:Professional Chevy Big Block Piston - 4.500 in. Bore - 1.270 .in CH, 38.00 CC
Title:Wiseco - Chevrolet, Big Block, 4.500 in. Bore, Piston
Wrist Pin Included:Yes
Wrist Pin Material:52100
Wrist Pin Outer Diameter:0.990
Wrist Pin Style:Floating

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Wiseco, WISECO-PRO TRU
StreetFX SKU wis6426BS
SFX Item ID 4062229
Accounting SKU wis-6426BS
Manufacturer SKU 6426BS
Manufacturer UPC 00193564083968
Alternative References 6426BS, WIS-6426BS

Piston, Professional Series, 4.500 in. Bore, Dome, Single Valve Relief, Forged Aluminum, Chevy, Big Block, Stroker, Each

Wiseco Professional Series pistons are designed to take the hard-driving abuse from your performance engine. They're forged from either 2168 or 4032 aluminum alloy for maximum strength, and then precision CNC-machined to their intricate final configurations under close tolerances. Where applicable, designs incorporate strength provisions to deal with turbocharging, supercharging, and nitrous. Chromoly wrist pins and Spirolox retainers are included. Choose the model tailored for your engine application.

Product Attributes
BrandWiseco
Manufacturer's Part Number6426BS
Part TypePistons
Product LineWiseco Professional Series Pistons
UPC00193564083968
Piston Rings IncludedNo
Bore (in.)4.500 in.
Bore (mm)114.300mm
Stroke4.250 in.
Engine Stroke TypeStroked
Rod Length6.385 in.
Piston StyleDome, with single valve relief
Piston MaterialForged aluminum
Compression Height (in.)1.270 in.
Piston Head Volume (cc)-38.00cc
Wrist Pin StylePress-fit or floating
Wrist Pin Retainers IncludedYes
Wrist Pin IncludedYes
Pin Diameter (in.)0.990 in.
Piston Ring Thickness0.043 in. x 1/16 in. x 3/16 in.
File FitNo
GaplessNo
RemanufacturedNo
QuantitySold individually.
NotesFits 9.750 deck height.

Manufacturer Attributes
Piston Quantity 1
Compression Height 1.270
Piston Material 2618
Piston Volume 38.00
Bore Diameter 4.500
Category Hierarchy Auto>Pistons>Individual Pistons>Domestic>Professional
Industry Automotive
Engine Big Block
Engine - Web Big Block
Make Chevrolet
Make - Web Chevrolet
Product Market Domestic
Product Type Engine Piston
Forging Type Full Round
Engine Type ICE
Product Series Professional
Title - Web Professional Chevy Big Block Piston - 4.500 in. Bore - 1.270 .in CH, 38.00 CC
Title Wiseco - Chevrolet, Big Block, 4.500 in. Bore, Piston
Skirt Coating Yes
Ring Set Included No
Wrist Pin Included Yes
Wrist Pin Material 52100
Wrist Pin Outer Diameter 0.990
Wrist Pin Style Floating
Out of Stock Message Estimated Shipped Date 3-4 Weeks
Manufacturer Designation Piston, Chevrolet, Big Block, 4.500 in. Bore, Professional, Set of 1
Product Class Engine Piston
Construction/Type Wiseco Chevrolet Big Block Piston, 4.500 in. Bore, 1.270 in. Compression Height, 0.990 in. Pin Diameter, Professional, Set of 1.
Vehicle Designations Chevrolet Big Block Drag Nitrous
Product Outline <ul><li>Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength</li><li>ArmorGlide? Skirt Coating: seizure resistant, friction reduction, and quieter operation</li><li>Fully machined crown features</li><li>Precision ring grooves, anti-detonation groove, and additional ring seal improving features</li><li>Forced pin oiling</li><li>Designed and built to withstand heavy to severe duty performance applications</li></ul>
Vehicle Brief Chevy BB DRAG NITROUS 1.270CH
Market Description Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco?s Professional Series.

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