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  See all Engine products
Supertech Black Nitride Intake Valve 2.060"x.3138"x4.895" for Small Block Chevrolet LS1 - ST-27008N

If you're diving into the world of performance engines, you’ve probably heard of Supertech Performance. With over 20 years of experience under their belt, they’ve been crafting racing valves that really stand the test of time. They don’t just churn out products; they put in the work, testing rigorously and collaborating closely with engine builders. The goal? To deliver top-notch valves that meet the needs of every application out there.

Black Nitride Coating

Now, let’s talk about something that sets these valves apart: the black nitride coating. It’s not as common as chrome, but it’s gaining traction, especially among folks working on European and Japanese engines. Why? Well, this treatment boosts the microhardness to a minimum of 800HV, which is tougher than the stainless steel base. What does that mean for you? You get a valve that keeps its cool under pressure while maintaining good ductility beneath that hard surface.

The finish is smoother compared to chromed stems, which means less friction between the valve stem and guide. This is especially important because higher RPM engines can suffer from power loss due to internal friction. With the black nitride layer, you’re looking at reduced friction, which translates to better performance and efficiency. Plus, it’s durable enough to handle lead-free fuels, alcohols, nitro, and other high-octane mixes without breaking a sweat.

One of the standout features is how the nitrided layer is bonded to the valve at a microscopic level. This means it won’t flake off or break when things get a bit rough—like when valves bend after a piston impact. Unlike chrome, which only coats the stem, the black nitride treatment covers the entire valve. And to top it off, these valves come swirl polished, have a stem undercut, and feature a hardened tip, making them a solid choice for any performance build.

Fitment

  • Small Block Chevrolet LS1

So, if you're looking to upgrade your Small Block Chevrolet LS1, the ST-27008N Supertech Single Black Nitride Intake Valve, measuring 2.060x.3138x4.895 inches, is worth considering. It’s built to last and designed for performance, so you can push your engine to its limits without worrying about the little things.

Other Part Numbers:
Supertech #sptST-27008N

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Who is Supertech?

Supertech is a company located in Silicon Valley San Jose, California. It is the place where companies with the most cutting-edge technology are located. It allows Supertech to gain access to the latest technology that helps them create high-quality products.  Supertech is known for manufacturing some of the best aftermarket internal engine parts in the industry. Today, they are considered the leading brand in their market segment.

Valve Train Component Experts

With over 30 years of experience, Supertech was able to develop products that meet the demands of their customers. They offer high-performance valves and valvetrain components that are used by many engine builders and tuners everywhere.

Racer’s Brand Of Choice

Supertech provides the motorsport industry with top-notched products for virtually any type of racing discipline. Whether it’s Road Racing, Drag Racing, or Rally, they have the right parts for you. Each piece is carefully designed and manufactured to provide optimum performance and give racers the competitive advantage they need to win championships.

Purchase Supertech Products At Vivid Racing

If you are in the market for high-quality performance parts for your engine, Supertech is the brand for you. The company has always been on edge in creating innovative products that would keep up with the fast-changing automotive trend. Whether for the tracks or the street, Supertech guarantees that you will only get the best products from them. To know more about Supertech, visit Vivid Racing and check out their list of parts that fit your specific needs.



Due to the nature of the application, these parts are sold without any express warranty or any implied warranty of merchantability, or fitness for a particular purpose.

Supertech Performance Inc. shall not, under any circumstances, be liable for any special, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue, cost of purchased or replacement goods, or claims of customers of the purchase, which may arise and/or result from sale, installation or use of these parts.

The sole obligation of Supertech Performance Inc., shall be limited only to the products to be found defective, in either workmanship or material, after inspection performed by our company. This Limited Warranty applies only to the original purchaser of the product and only covers the replacement or repair of the product at our election.

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