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Wiseco Professional Series Pistons K240AS Pistons, Forged, Dome, 4.500 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Big Block, Set of 8

SKU: WISK240AS

Pistons

Wiseco Professional Series Pistons K240AS Pistons, Forged, Dome, 4.500 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Big Block, Set of 8

SKU: WISK240AS

Pistons
A$2,168.42
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

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.

Part Type

Engine Piston Set

Data: v4.2 - Upd: 2026-10-16 05:17:33

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

Specifications

Product Attributes - Brand
Wiseco
Product Attributes - Manufacturer's Part Number
K240AS
Product Attributes - Part Type
Pistons
Product Attributes - Product Line
Wiseco Professional Series Pistons
Product Attributes - UPC
00193564071866
Product Attributes - Piston Rings Included
No
Product Attributes - Bore (in.)
4.500 in.
Product Attributes - Bore (mm)
114.300mm
Product Attributes - Stroke
4.250 in.
Product Attributes - Rod Length
6.385 in.
Product Attributes - Piston Style
Dome, with single valve relief
Product Attributes - Piston Material
Forged aluminum
Product Attributes - Compression Height (in.)
1.270 in.
Product Attributes - Piston Head Volume (cc)
-42.40cc
Product Attributes - Wrist Pin Style
Press-fit or floating
Product Attributes - Wrist Pin Retainers Included
Yes
Product Attributes - Wrist Pin Included
Yes
Product Attributes - Pin Diameter (in.)
0.990 in.
Product Attributes - Piston Ring Thickness
1/16 in. x 1/16 in. x 3/16 in.
Product Attributes - File Fit
No
Product Attributes - Gapless
No
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a set of 8.
Product Attributes - Notes
Hollow dome with full round type skirt design.

Reference Information

Brand Name/s Wiseco
StreetFX SKU wisK240AS
SFX Item ID 4765761
Supplier Item Code 4765761
Manufacturer SKU K240AS
Manufacturer UPC 193564071866

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1991
    Ending Year1995
    Engine TypeV8
    Engine FamilyChevy big block Gen V
    Engine Size8.2L/502
    Application Notes10.200 inch block height. Zero deck with 10.195 inch block height. Designed for open cylinder heads.
  • MakeCHEVROLET
    Beginning Year1991
    Ending Year1995
    Engine TypeV8
    Engine FamilyChevy big block Gen V
    Engine Size8.2L/502
    Application Notes9.800 inch block height. Zero deck with 9.780 inch block height. Designed for open cylinder heads.
  • MakeCHEVROLET
    Beginning Year1996
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy big block Gen VI
    Engine Size8.2L/502
    Application Notes10.200 inch block height. Zero deck with 10.195 inch block height. Designed for open cylinder heads.
  • MakeCHEVROLET
    Beginning Year1996
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy big block Gen VI
    Engine Size8.2L/502
    Application Notes9.800 inch block height. Zero deck with 9.780 inch block height. Designed for open cylinder heads.

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