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Wiseco 6398RX3905 Flat Top Piston Chevy LS Series 3.905 Bore -3.2cc

(1998-2002 Chevrolet Camaro SS/Z28; 1997-2004 Chevrolet Corvette Base; 2004 Pontiac GTO; 1998-2002 Pontiac Firebird Formula)

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

6398RX3905
9 reviews
Sale Price

$145.99

Estimated ship date Monday, November 23

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Product Details

The Wiseco 6398RX3905 is a shelf-stock forged piston designed for Chevrolet LS Series engines, featuring a 3.905-inch bore diameter and a -3.2cc flat top (FT) valve relief. Wiseco shelf-stock pistons are manufactured to tight tolerances and are ready to ship, making them an ideal solution for engine builders who need proven performance components without extended lead times.

Wiseco forged pistons are crafted from high-strength aluminum alloy using their proprietary forging process, delivering superior strength and durability compared to cast pistons. The flat top design with -3.2cc valve reliefs is well-suited for high-compression LS performance builds, helping achieve target compression ratios while providing adequate valve clearance.

Key Features:

  • Application: Chevrolet LS Series engines
  • Bore Size: 3.905 inches
  • Dome/Dish Volume: -3.2cc flat top with valve reliefs
  • Construction: High-strength forged aluminum alloy
  • Shelf Stock: Ready to ship — no custom lead time required
  • Design: Flat top (FT) piston profile
  • Manufacturer: Wiseco Pistons — a trusted name in performance forged pistons

Wiseco is an industry leader in forged pistons for performance, racing, and powersports applications. The 6398RX3905 is part of their LS-platform shelf-stock lineup, providing engine builders with a reliable, high-quality forged piston for street performance, track, and rebuild applications.

Products specifications

Fits

1998-2002 Chevrolet Camaro SS/Z28; 1997-2004 Chevrolet Corvette Base; 2004 Pontiac GTO; 1998-2002 Pontiac Firebird Formula

Bore

3.905

Comp Ratio @ 65CC

10.6:1

Comp Ratio @ 67CC

10.4:1

Comp Ratio @ 68CC

10.2:1

Comp Ratio @ 70CC

10:1

Dome Volume

-3.2

Gram Weight

424

Rod

6.098 / 6.125

Stroke

3.622

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Great service no problems at all

i was skeptical about this site but after reading the reviews and them having the lowest price i could find for my part i pulled the trigger and wasn't disappointed. fast shipping and low prices with great customer service will shop with them again if they have what im looking for.

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