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Wiseco 6473ML96 Forged Piston SBC LS1 Vortec 5.3L 96mm Bore -7cc 22mm Pin

(2006-2009 Chevrolet Impala SS; 2005-2008 Pontiac Grand Prix GXP; 2008-2009 Buick LaCrosse Super)

Manufacturer

Part Number

6473ML96
Sale Price

$130.99

Estimated ship date Wednesday, November 18

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Wiseco 6473ML96 is a Professional Series shelf-stock forged piston designed for Small Block Chevy (SBC) LS1 and Vortec 5.3L engine builds. Engineered for serious performance builders, this piston delivers custom-level durability and precision right off the shelf — no wait time required for a custom order.

Key Specifications:

  • Bore Diameter: 96mm (3.780 in.)
  • Wrist Pin Diameter: 22mm
  • Dome/Dish Volume: -7cc (dished)
  • Compression Ratio: Approximately 10.25:1 (with stock heads and gaskets)
  • Part Series: Professional Series Shelf Stock
  • Application: SBC LS1 / GM Vortec 5.3L

Construction & Features:

  • Forged aluminum construction for superior strength-to-weight ratio over cast pistons
  • Manufactured and machined in Wiseco's Mentor, Ohio facility using cutting-edge equipment
  • Designed for heavy to severe duty race builds requiring consistent, repeatable performance
  • Shelf-stock availability means immediate fitment without custom lead times
  • Compatible with premium ring sets for a complete, high-performance assembly

Wiseco has been a world leader in high-performance forged pistons for over 80 years, serving automotive, motorsports, and powersports markets. The Professional Series line is built for racers and engine builders who demand no-compromise quality in every component.

Products specifications

Fits

2006-2009 Chevrolet Impala SS; 2005-2008 Pontiac Grand Prix GXP; 2008-2009 Buick LaCrosse Super

Comp Height

1.105

Comp Ratio @ 58CC

11.2:1

Comp Ratio @ 61CC

10.8:1

Dome Volume

-7

Gram Weight

370

Rod

6.098 / 6.125

Stroke

4

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