Manley Performance NexTek Series High Performance Valve Springs - 2 valves per cylinder | Multiple Chevrolet / Pontiac Fitments (221436-16)

NexTek® Series High Performance Valve Springs - Set of 16 by Manley Performance

Manley Performance has brought its trademarked NexTek Valve Spring technology to the Chevy LS, Ford Modular, and Chrysler SB HEMI markets. Manufactured from "super clean" Hi-tensile strength chrome silicon steel alloy, these springs offer winning performance, long term reliability and the ultimate value. Our proprietary multi-step heat-treating combined with our shot peening process minimizes load loss and offers superior fatigue life.

Computer-aided modeling of application specific designs has enabled us to bring the very best springs to these niche markets. We've utilized ovate wire extensively with many conical designs to render the lightest, highest quality, most reliable springs available today; as well as adding a special polishing feature that helps further improve the fatigue life of the part.

Features

• Manufactured from “super clean” Hi-Tensile Chrome Silicon steel
• Shot-peened to MIL spec for maximum fatigue life
• Tip thickness designed to eliminate overload breakage
• Computer-aided modeling or designs minimizes valve bounce and valve gear separation
• Tightly controlled open end flatness reduces valve stem side loading
• Proprietary multi-step heat treating minimizes load loss

Benefits

• Higher natural frequency and lower active mass provides improved valvetrain control and higher RPM potential
• Dual spring design reduces friction, which generates less heat and translates into greatly reduced load loss
• Extensively tested on the Spintron, dyno and race track (including blown nitro engines) and proven highly effective
• Smaller diameter, lightweight dual design allows engine to rev higher with improved valve train control

Please Note: The image provided is generic and may not be an accurate representation of the product you will receive

Applications

• 1987-1990 Chevrolet Camaro Iroc-Z
• 1991-1992,1998-2002 Chevrolet Camaro Z28
• 1988 Chevrolet Corvette 35th Anniversary Edition
• 1985-1992,1997-2004 Chevrolet Corvette
• 1986 Chevrolet Corvette Indianapolis 500 Pace Car
• 1990-1992 Chevrolet Corvette ZR-1
• 1987-1988 Pontiac Firebird
• 1989-1992,1998-2002 Pontiac Firebird Formula
• 1987-1992 Pontiac Firebird Trans Am
• 1989-1992 Pontiac Firebird Trans Am GTA
• 2004 Pontiac GTO

What's In The Box?

• 16 - Valve Springs

Warranty

• Manley products, due to their intended use, are sold without warranty.