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Wiseco 3905GFX GFX-Style Piston Ring Set 3.905 in. Bore 1.2/1.2/3.0mm Single Cylinder

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

Manufacturer

Part Number

3905GFX
Sale Price

$39.99

Estimated ship date Friday, November 20

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Product Details

The Wiseco 3905GFX is a GFX-style performance piston ring set designed for a 3.905-inch (99.187mm) bore diameter, sold as a single-cylinder set. Engineered to Wiseco's exacting standards, this ring set delivers superior compression sealing and oil control for high-performance automotive applications.

Ring Construction:

  • Top Ring: Chrome-plated, barrel-faced steel construction for durability and excellent cylinder wall sealing
  • Second Ring: Taper-faced ductile iron Napier-style ring for enhanced oil scraping and compression backup
  • Oil Control Ring: 3-piece assembly featuring a stainless steel spacer with chrome-plated rails for precise oil management

Key Specifications:

  • Bore Diameter: 3.905 in. (99.187mm)
  • Ring Groove Widths: 1.2mm / 1.2mm / 3.0mm
  • Top Ring Gap: 0.047 in. (file-to-fit)
  • Second Ring Gap: 0.047 in. (file-to-fit)
  • Quantity: Single cylinder set (1 piston)

This is a file-to-fit ring set, allowing builders to achieve a precise end gap tailored to their specific application and power goals. Wiseco GFX ring sets are commonly paired with Wiseco's late-model EFI and small block Chevy piston lineups, making them an ideal replacement or upgrade for performance engine builds.

Note: This set fits one piston only. Order the quantity needed to match your engine's cylinder count.

Products specifications

Fits

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

2nd Ring

IPN

Bore

3.905

Oil Ring

CUS (std)

Size

.047-.047-3mm

Top Ring

SGP (Gas Nitrited)

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