If you're diving into a valvetrain overhaul, you really can’t go wrong with the Supertech Spring and Retainer kits. These aren't just any springs; they’re precision-engineered to deliver the kind of performance that every enthusiast dreams about. I’ve had my hands on these kits, and let me tell you, they bring a whole new level of reliability and power to your engine setup.
What I love about these kits is how they’re tailored for those of us who demand the best. The dual spring design is robust, and with a seat pressure of 70 lbs at 34mm, you know these springs mean business. They can handle a max lift of 14.50mm without breaking a sweat, and the coil bind at 19.50mm gives you a solid margin for those high-rev situations. Seriously, if you’re pushing your engine hard, these springs are built to keep up.
Now, let’s talk numbers. The rate sits at a solid 10.00 lbs/mm, which means you’re getting a good balance between performance and durability. The retainers (RET-H70/T1) and springs (SPR-H1002-C20) are matched perfectly, so you won’t have to worry about compatibility issues. Plus, the seat locator (SEAT-H020DS) rounds out the kit nicely, making installation straightforward.
And for those of you rocking the Opel/Vauxhall C20XE 16V, this kit is specifically designed for you. It’s like they knew exactly what we needed to get the most out of our engines. Whether you’re hitting the track or just cruising around, these springs will keep your valvetrain in check and performing at its best.
So, if you’re ready to take your engine build to the next level, the Supertech Dual Valve Spring Kit is definitely worth considering. It’s all about getting that perfect blend of performance and reliability, and trust me, these kits deliver.
Other Part Numbers:
Supertech #sptSPRK-H1002-C20
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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 ExpertsWith 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 ChoiceSupertech 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 RacingIf 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.