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  See all Engine products
Supertech Dual Valve Spring Kit for Nissan SR20VE DOHC 1997-2003, 10mm Max Lift - SPRK-H1021D-VE

If you’re diving into a serious engine build or just looking to give your ride a little extra oomph, the Supertech Spring and Retainer kits are where it’s at. I’ve used these kits myself, and let me tell you, they’re not just some off-the-shelf parts. They’re precision-engineered to give you a complete valvetrain overhaul that can really handle the heat, whether you’re hitting the track or just cruising around town.

These kits are designed for performance enthusiasts who refuse to settle for anything less than the best. We’re talking about dual springs that can take your engine’s performance to the next level. With a press seat measurement of 138 at 37.50, these springs are built to withstand some serious pressure. They max out at a lift of 10.00mm, so you know they’re ready to deliver when you push the pedal down.

One of the standout features is the coil bind at 23.10mm, which means you won’t have to worry about those springs getting squished under heavy load. The rate sits at 13.20 lbs/mm, giving you that perfect balance between responsiveness and stability. And the retainers? They’re the RET-NSR20/T1, which fit seamlessly with the springs (SPR-H1021D-VE) to create a reliable setup that just works.

Installation is straightforward, but keep in mind you’ll need to use the OEM seat locator for a proper fit. These kits are compatible with a few Nissan models, including the Bluebird from ’97 to 2000, the Primera from ’97 to ’03, and the Wingroad from ’97 to 2000. So if you’re rocking one of those, you’re in luck.

In the end, if you’re serious about performance and want something that’s not just a generic upgrade, these Supertech kits are a solid choice. They’ve got the quality, the specs, and the performance to back them up. Trust me, your engine will thank you.

Other Part Numbers:
Supertech #sptSPRK-H1021D-VE

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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