Looking for a reliable solution to keep your engine running smoothly? The Manley Valve Lash Cap, LocCap-.3715 STEM, is designed to provide the perfect fit and function for your vehicle's engine, ensuring optimal performance.
The Manley Valve Lash Cap is engineered with precision to fit a variety of domestic vehicles. The part number 42408-1 is specifically designed to work seamlessly with compatible engine models, ensuring that you maintain the correct valve clearance and performance. This cap is built to withstand the rigors of engine operation, providing durability and reliability.
This valve lash cap is compatible with several popular vehicle models. To ensure the best fit, it's recommended that you verify your vehicle's specifications against the part number 42408-1. This proactive step will help you avoid any compatibility issues and ensure a smooth installation process.
Customers have praised the Manley Valve Lash Cap for its quality and performance. Many have noted how easy it is to install and how well it functions in maintaining proper valve lash. Here’s what some users have to say:
Manley is a name synonymous with quality in the automotive industry. By choosing the Manley Valve Lash Cap, LocCap-.3715 STEM, you're investing in a product that not only meets industry standards but also enhances your engine's longevity and performance. Make the smart choice for your vehicle today!
Universal Fitment: While designed for a wide range of vehicles, it's essential to research and confirm the application to ensure compatibility with your specific model. This diligence will help guarantee that the Manley Valve Lash Cap works perfectly for your needs.
⚠ 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.