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Wiseco K421B8 Big Block Chevy 3.815 in. Bore Forged Piston

Manufacturer

Part Number

K421B8
Sale Price

$1,135.99

Estimated ship date Thursday, November 19

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Wiseco K421B8 is a Shelf Stock forged piston set designed for Chevrolet Big Block (BBC) engines with a 3.815-inch bore.

Key Features:

  • Forged aluminum construction for superior strength and durability over cast pistons
  • Designed for Chevrolet Big Block (BBC) V8 applications
  • 3.815 in. bore diameter for precise fitment
  • Domed crown design to optimize compression ratio in BBC builds
  • Precision-machined ring grooves for maximum ring seal and reduced blow-by
  • Includes chrome-moly wrist pins and Spirolox retaining rings
  • Shelf Stock availability for fast delivery on popular BBC bore sizes

Wiseco Shelf Stock pistons are engineered and forged in the USA, offering performance-level quality for street, strip, and racing applications. The K421B8 is an excellent choice for builders refreshing or upgrading a Big Block Chevy engine who need reliable, fast-shipping forged pistons at a competitive price point.

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