Howards Cams Extreme Black Intake Valve for Chevy 265-400
Looking to boost your Chevy 265-400's performance? The Howards Cams Extreme Black Intake Valve is your go-to solution. Designed specifically for high RPM and high horsepower applications, this valve is engineered to optimize your engine's efficiency and power delivery.
Key Features
- High-Temperature Performance: The Extreme Black finish features a gloss black nitride that excels in high-temperature environments, ensuring cooler operation and extending valve life.
- Enhanced Flow: For naturally aspirated engines, these valves significantly improve cylinder flow, resulting in noticeable horsepower gains.
- Durable Construction: Crafted from a one-piece forged high nickel stainless steel alloy, these valves are built to withstand the rigors of demanding race conditions.
- CNC Precision: Each valve is CNC finished to exacting tolerances, making them a reliable choice for serious racers.
- Micro-Hardness: The black nitride treatment provides superior surface hardness compared to traditional stainless steel, ensuring durability and longevity.
Benefits of the Extreme Black Intake Valve
With a smoother surface finish than chromed stems, the Extreme Black Intake Valve reduces friction between the stem and guide, minimizing power loss. The nitriding process is integral to the steel, enhancing performance without the drawbacks of a coating. This means less valve-guide friction and improved overall efficiency in your engine.
Specifications
- Part Number: 20511N
- Diameter: 2.055 inches
- Stem Diameter: 11/32 inches
- Material: High nickel stainless steel alloy
Popular Fitments
- Chevy 265
- Chevy 283
- Chevy 327
- Chevy 350
Customer Reviews
Customers rave about the Howards Cams Extreme Black Intake Valve, highlighting its remarkable performance improvements and durability. Many users have noted that these valves significantly enhance their engine's responsiveness and power output, making them a favorite among performance enthusiasts.
Upgrade your Chevy 265-400 with the Howards Cams Extreme Black Intake Valve and experience the difference in performance and reliability!
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Howards Cams is an aftermarket company that Howards Johansen founded in 1945. It started as Howards Power & Racing Equipment and specialized in manufacturing high-performance racing cams for the automotive market. Even after turning the business over their oldest son, the company remained one of the best cam manufacturers in the industry.
Maximizing Their Racing ExperienceThe company has always used it is on-track experience to create powerful cam profile designs. It is why they have become one of the favorite brands of many top fuel dragster racers and drivers from other racing disciplines such as road racing, mudd bogging, marine racing, and circle track racing.
Advanced Manufacturing TechniqueHowards Cams uses the most advanced computer design software to create the most competitive product out there. They offer a wide range of performance parts from camshafts, connecting rods, crankshafts, billet main caps, and forged pistons. All of these are made in the USA to ensure consistent quality.
Purchase Howards Cams Products At Vivid RacingIf you are in the market for high-performance parts for your engine, then look no further as Howard Cams is the brand for you. They have all the parts you need to create a fast machine and is trusted by many racers and enthusiast worldwide. If being on the top podium is your dream, then upgrade your engine with Howard Cams parts.
To know more about the company, visit Vivid Racing and check out their list of products that fit your specific needs.
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