Wiseco Professional Series Forged Racing Piston

Chrysler Gen III HEMI 6.2L 4.090in Bore

60400LXS

Overview:

The Wiseco Professional Series forged racing piston is engineered for serious racers and high-performance engine builders who demand uncompromising strength and durability. Designed specifically for the Chrysler Gen III 6.2L HEMI engine with a 4.090-inch bore, this piston delivers the reliability needed for heavy to severe duty race applications.

Whether you are building a drag racing engine, a high-boost street machine, or a track-focused build, this piston provides the foundation for increased power and long-lasting performance. With premium rings included, you’ll get a complete, race-ready piston solution from a trusted name in motorsports.

Key Features:

Wiseco’s Professional Series pistons incorporate advanced design and manufacturing techniques to meet the demands of extreme racing environments. Key features include:

• Forged from high-strength aluminum alloy for superior durability and resistance to heat and stress.
• Precision 4.090-inch bore size tailored for Chrysler Gen III 6.2L HEMI engines.
• 1.280-inch compression height optimized for proper piston-to-cylinder head clearance and combustion efficiency.
• 0.945-inch pin diameter ensuring a robust wrist pin connection for high RPM stability.
• Includes premium piston rings engineered for optimal sealing and reduced blow-by in racing conditions.
• Designed to withstand heavy to severe duty race builds, including forced induction and high-boost setups.
• Manufactured with tight tolerances to ensure consistent fitment and performance.

Construction & Design:

Each piston in the Professional Series is forged using state-of-the-art processes that enhance grain structure and mechanical properties. This results in a piston that resists cracking, scuffing, and thermal fatigue under extreme operating conditions. The design balances lightweight construction with maximum strength, helping to reduce reciprocating mass and improve engine response.

Wiseco’s attention to detail in compression height and pin diameter ensures compatibility with factory and aftermarket connecting rods, facilitating easier installation and reliable operation. The piston’s surface finish and ring grooves are machined to exacting standards to maintain ring seal and minimize friction.

Installation & Fitment:

This piston is a direct fit for Chrysler Gen III HEMI 6.2L engines with a 4.090-inch bore. It is intended for professional engine builders and racers who require precision components for high-performance builds. Installation should be performed by experienced technicians familiar with forged piston assembly and engine blueprinting.

• Designed for use in race engines and heavy-duty applications.
• Fits Chrysler Gen III HEMI 6.2L engines with 4.090-inch bore size.
• Requires proper ring end gap and piston-to-wall clearance setup during installation.

What’s Included

• One Wiseco Professional Series forged piston
• Premium piston rings set

Ideal For:

• Serious racers building heavy to severe duty race engines
• High-performance Chrysler Gen III HEMI 6.2L engine builds
• Forced induction and high-boost applications requiring durable pistons
• Engine builders seeking premium forged pistons with precise fitment

Wiseco is a forged piston and engine-components brand trusted in both automotive and powersports performance, offering precision-made pistons and kits for high-RPM, high-boost, and high-load builds. Whether you’re rebuilding for durability or chasing serious horsepower, Wiseco parts are chosen for strength, consistency, and proven performance in demanding conditions.