The Manley Spring Retainer, specifically the RET-TENSILE MAX SUPER 7 model, is engineered for automotive enthusiasts who demand reliability and performance. Designed to fit a variety of domestic vehicles, this spring retainer is an essential component for high-performance engine builds.
The part number 23674TM-16 is crafted with precision to ensure a perfect fit and optimal performance. This spring retainer is designed to withstand the rigors of high RPM applications, making it ideal for performance engines. The robust construction guarantees longevity while maintaining the necessary tension for valve operation.
This spring retainer is compatible with a wide range of domestic vehicles, but it’s crucial to confirm its fitment with your specific engine setup. While it offers universal fitment, we recommend checking your vehicle’s specifications to ensure compatibility. Doing your due diligence will help you make an informed decision about this product.
Users have praised the Manley Spring Retainer for its durability and performance enhancement in their builds. Many have noted that it significantly improved their engine's responsiveness and reliability, especially under high-stress conditions. Customers appreciate the ease of installation and the peace of mind that comes with using a trusted brand like Manley.
When it comes to high-performance automotive parts, Manley is a name you can trust. Their commitment to quality and innovation ensures that you’re getting a product that not only meets but exceeds expectations. The RET-TENSILE MAX SUPER 7 is no exception, offering both performance and reliability for your engine needs.
If you're seeking a reliable spring retainer that fits a variety of domestic vehicles and enhances your engine's performance, the Manley Spring Retainer, RET-TENSILE MAX SUPER 7 (23674TM-16) is an excellent choice. Equip your engine with this high-quality component and experience the difference in performance and durability.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Manley Performance, formerly called Manley Speed Equipment, was established in 1966 by Hank Manley shortly after his graduation from Brown University. His interest in the performance and racing traced back to 1960 when, at age 17, he rebuilt a 312 CID Ford V8 engine, installed a camshaft and three two-barrel carbs, and raced a ’56 Thunderbird on New Jersey’s streets. Initially, the company’s product lineup included stainless valves, lifters, camshafts, forged pistons, vanadium valve springs, pushrods, and timing chain kits. By 1998, Manley had outgrown its first Bloomfield, New Jersey facility and bought several acres in Lakewood, New Jersey. It was around this time that the brand’s name formally changed to Manley Performance. Nearly a decade later, the production space doubled in size.
Evolving in the Automotive SpaceLed by GM Michael Tokarchik in 2002, Manley entered the high-performance passenger car market as an OEM supplier of connecting rods for the 2003/2004 Ford SVT Mustang Cobra. Production reached 2500 rods per week without missing a single delivery date. Ford awarded Manley its highest ever supplier rating. Manley’s presence in the OEM market continued from there as a supplier for the Ford GT. After nearly 50 years since its inception, Manley continues to be globally recognized as the leading manufacturer of performance valves, connecting rods, cylinder head components, pushrods, drive and oil systems, and several other engine parts.
What is Manley’s Specialty?Manley Performance specializes in high-performance engine internals that range from stock replacements to full-on race applications. They have been the standard of the industry since their inception; a fact that still remains true now as they have ventured into new markets. Today, Manley Performance continues to re-define itself in a high-performance aftermarket industry that is constantly evolving. The brand has developed a wide range of new products for growing markets that include sport compact, Ford modular, and Chevy LS. Manley also maintains its leadership role with the traditional V8 engine business.
Get Manley Performance at Vivid RacingIf you are in need of a serious upgrade to your engine, then Manley Performance parts should be on your list. Like all of our suggested manufacturers, Manley uses the best materials available to ensure a quality part for your engine. We carry Manley connecting rods, crankshafts, pistons, and valve components. The large lineup of domestic parts includes sport compact vehicles, Ford modular engines, GM’s LS series internals, and HEMI product upgrades for Chrysler.
If you can’t find what you’re looking for or need help choosing the right part for your car, call our sales team at (480) 966-3040. We are here to make your buying experience a breeze.