Upgrade your engine's reliability and performance with the Manley Valve Lock/Keeper, designed specifically for high-performance applications. This valve lock is perfect for those looking to enhance their engine's efficiency and durability.
The Manley Valve Lock/Keeper is engineered to fit a wide range of domestic vehicles, making it a versatile choice for automotive enthusiasts. However, to ensure compatibility with your specific vehicle and engine setup, we recommend double-checking the application details. This product is ideal for those working on performance builds or engine rebuilds where precision and reliability are paramount.
Customers rave about the Manley Valve Lock/Keeper for its robust construction and ease of installation. Here’s what some have to say:
Manley is a trusted name in the automotive industry, known for producing high-quality components that stand the test of time. When you choose the Manley Valve Lock/Keeper, you're investing in a product that enhances your engine's performance while ensuring durability and reliability.
Whether you're a seasoned mechanic or a DIY enthusiast, the Manley Valve Lock/Keeper, LOC-TI 8° PRO 900 .3100 +.050 is a smart choice for your engine. With its solid construction and proven performance, it’s sure to meet your needs. Make sure to verify fitment with your specific vehicle to enjoy the best results!
⚠ 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.