Wiseco 103.429mm (4.072inch) Auto Ring Set- 1 cyl. Ring Shelf Stock is the exact Wiseco piston rings identified by manufacturer part number 4072GFX. Match the part number, engine family, bore, compression height, ring package, pin size, and application before ordering.

Key Features

• GFX Gapless Second Ring: Overlapping design presses against cylinder wall for stronger compression hold at high rpm
• Precision 103.429mm Bore Fit: Aligns perfectly with Wiseco pistons to cut blow-by and boost ring seal in 4.072 inch LS blocks
• 1.5mm Top / 1.5mm Second / 3.0mm Oil Rings: Narrow rings lower friction and manage oil for cleaner burn and more power
• Race-Tested Construction: Made with motorsports data to endure high heat and stress in LS1 builds
• Shelf Stock Availability: Packaged with standard gaps for fast single-cylinder installs in rebuilds

Fitment

Verified catalog applications: 1997-2004 Chevrolet Corvette, 1998-2002 Chevrolet Camaro, 1998-2002 Pontiac Firebird, 2004 Pontiac GTO. Confirm engine code, bore, compression height, cylinder count, and manufacturer exclusions for the exact vehicle before ordering.

Specifications

What’s Included

One new Wiseco piston rings identified by manufacturer part number 4072GFX, plus only the hardware expressly supplied by Wiseco for this exact part number.

About Wiseco

Wiseco engineers forged pistons, rings, pins, and precision engine-building components for street and motorsports applications.

Related Wiseco Products

• Shop all Wiseco products
• Wiseco 100.0mm Ring Set 1.2 x 1.5 x 2.0mm Ring Shelf Stock
• Wiseco 102.41mm (4.032inch) Auto Ring Set- 1 cyl. Ring Shelf Stock
• Wiseco 77.0mm Ring Set (GNH) Ring Shelf Stock

Frequently Asked Questions

Will Wiseco 4072GFX fit my vehicle?
Verified catalog applications: 1997-2004 Chevrolet Corvette, 1998-2002 Chevrolet Camaro, 1998-2002 Pontiac Firebird, 2004 Pontiac GTO. Confirm engine code, bore, compression height, cylinder count, and manufacturer exclusions for the exact vehicle before ordering.

What should I verify before ordering?
Verify the exact part number, engine code, bore, compression height, crown volume, compression ratio, ring package, pin diameter, cylinder count, and manufacturer exclusions.

What is included?
The package contains only the Wiseco components and hardware specified for part number 4072GFX. Related service parts and tools are sold separately unless expressly listed.

Installation

Follow Wiseco’s current instructions for part number 4072GFX. Measure every cylinder and component, confirm all clearances and orientation, check ring end gaps, use the specified lubrication and fastener torque, and have machining or assembly completed by a qualified engine builder when required.