Looking for a reliable valve lock that fits seamlessly into your engine setup? The Manley Valve Lock/Keeper, LOC-CAPT.3415 +.050 is designed to provide a secure and dependable hold for your valve springs, ensuring optimal performance in your vehicle.
This valve lock is crafted for durability and precision, making it an excellent choice for performance enthusiasts. It ensures that your valve springs remain securely in place, which is crucial for maintaining engine efficiency and power. With its universal fitment, it is adaptable to a variety of applications, making it a versatile addition to your engine components.
The Manley Valve Lock/Keeper is engineered to fit a range of domestic vehicles. Before purchasing, it’s advisable to verify compatibility with your specific engine setup to ensure a perfect match. This will help avoid any installation issues and guarantee that you get the performance you expect.
Customers have praised the Manley Valve Lock/Keeper for its reliability and ease of installation. Many have noted significant improvements in engine performance and a noticeable reduction in valve train noise. Users appreciate the quality of the materials and the precision engineering that comes with the Manley brand.
Upgrade your engine's valve spring retention with the Manley Valve Lock/Keeper, LOC-CAPT.3415 +.050. Its robust design and universal fitment make it a smart choice for automotive enthusiasts looking to enhance their vehicle's performance.
⚠ 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.