Howards Cams 2.165/8mm/Std. Extreme Black Severe Application Valves

If you're looking to push your Chevrolet LS to the next level, the Howards Cams 2.165/8mm/Std. Extreme Black Severe Application Valves are designed just for you. These valves are engineered for high RPM and high horsepower applications, making them a perfect fit for performance enthusiasts who demand the best from their engines.

Why Choose Extreme Black Valves?

The Extreme Black valves stand out thanks to their unique black nitride process, which not only enhances their durability but also helps them run cooler under high temperatures. This means improved valve life, especially in demanding conditions like nitrous, turbo, or supercharged setups. Even for naturally aspirated engines, these valves significantly boost cylinder flow, leading to noticeable horsepower gains.

Features that Set These Valves Apart

• High nickel stainless alloy 1-piece forgings for strength and reliability
• Special black nitride process enhances durability and performance
• Optimized for naturally aspirated, nitrous, turbo, and supercharged applications
• Designed specifically for high horsepower applications
• Runs cooler than standard valves, improving longevity
• Fully CNC machine finished for precise tolerances
• Smoother surface finish than chrome, reducing friction
• Higher micro-hardness compared to traditional stainless steel
• Undercut stems for increased airflow and efficiency

Specifications

• Part Type: Intake Valve
• Style: Howards Cams "Extreme Black" Severe Application Valves
• Application: Chevrolet LS
• Head Diameter: 2.165"
• Stem Diameter: 8mm
• Overall Length: 4.900"
• Material: 21-4N High Nickel Stainless Steel
• 1-Piece Design: Yes
• Hard Chrome Stems: No
• Undercut Stem: Yes
• Black Nitrided: Yes
• Swirl Polished: Yes
• Lock Groove Type: Conventional
• Lock Groove Quantity: Single
• Manufacturer: Howards Cams & Racing Components
• Manufacturer's Part Number: 21608N
• Weight: 0.28 lbs.
• Quantity: Sold as Each

Popular Fitments

The Howards Cams 21608N valves are compatible with a variety of Chevrolet LS applications, including:

• Chevrolet Camaro SS (2010-2015)
• Chevrolet Corvette C6 (2005-2013)
• Chevrolet Silverado 1500 (2007-2013)
• Chevrolet Tahoe (2007-2014)

What Customers Are Saying

Customers rave about the performance improvements and durability of the Howards Cams Extreme Black valves. Many have noted significant gains in horsepower and a smoother engine operation. Users appreciate the meticulous manufacturing process that ensures these valves can withstand extreme conditions without compromising performance.

Upgrade your Chevrolet LS with the Howards Cams 2.165/8mm/Std. Extreme Black Severe Application Valves and experience the difference in your engine's performance.