
Manley .490" Valve Springs & Retainer Kit w/o Valve Locks for Subaru EJ20 | EJ25
Looking to upgrade your Subaru's performance? The Manley .490" Valve Springs & Retainer Kit is designed specifically for the Subaru EJ20 and EJ25 engines, delivering reliability and enhanced performance for your ride. Crafted from high-quality materials, this kit ensures that your engine can handle higher lift camshafts without compromising on longevity.
Key Features
- High-Quality Materials: Made from super clean alloy, these valve springs are engineered to minimize stress, ensuring a long service life.
- Precision Engineering: Titanium retainers are manufactured using advanced double spindle CNC machines, guaranteeing exact tolerances and precise installed height specifications.
- Accurate Valve Locks: Valve locks are produced in Swiss turning centers, allowing for strict control over the mating angles for a perfect fit with the retainers.
Specifications
Valve Springs
- Quantity: 16 pcs.
- Outer Diameter (O.D.): 1.126"
- Inner Diameter (I.D.): .640"
- Seat Pressure: 95 lbs @ 1.420"
- Open Pressure: 217 lbs @ 1.050" | 257 lbs @ .930"
- Stock/Max Lift: .370" | .490"
- Coil Bind: .880"
- Rate (lbs/in): 330
Titanium Retainers
- Quantity: 16 pcs.
- Valve Stem Diameter: 6.0mm
- Degree: 6°
- Dimensions:
- A: .875"
- B: .627"
- C: .465"
- Step: .095"
- Weight: 5 grams
Fitment
- Compatible with Subaru EJ20 and EJ25 engines (Single conical ovate wire)
Customer Feedback
Users have praised the Manley .490" Valve Springs & Retainer Kit for its durability and performance enhancements. Many have noted that the installation process is straightforward, and they've experienced improved engine responsiveness and power delivery. Customers appreciate the precision engineering that Manley is known for, making this kit a popular choice among Subaru enthusiasts.
Upgrade your Subaru EJ20 or EJ25 with the Manley .490" Valve Springs & Retainer Kit and experience the difference in performance and reliability!
⚠ 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.
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