
Manley 1.580 Dual Valve Springs - Polished (Part Number: 221443P-16)
If you’re looking to enhance your engine's performance, the Manley 1.580 Dual Valve Springs are a fantastic choice for your vehicle. These polished springs are designed specifically for solid roller applications, ensuring that your engine runs smoothly and efficiently, especially during those high-stakes races.
Key Features
- Solid Roller Design: Tailored for solid roller setups, these springs maintain optimal performance under pressure.
- Consistent Spring Pressure: Experience no degradation of spring pressure even in the later stages of a race, providing reliability when you need it most.
- Premium Material: Crafted from specially processed chrome silicon, these springs are virtually free of impurities and surface irregularities, ensuring durability and performance.
- Proven Performance: The NexTek Series valve springs have been rigorously tested by top engine builders, confirming their status as some of the best on the market.
Specifications
- Maximum Valve Lift: .730
- Outer Diameter (O.D.): 1.580
- Inner Diameter (I.D.): .832
- Installed Open Pressure: 235@1.950 / 610@1.250
- Rate: 535
- Coil Bind: 1.170
- Component Code: E
Fitment Information
These valve springs are designed to fit a variety of performance applications, making them an excellent addition for anyone looking to boost their engine's capabilities. Whether you're racing on the track or enhancing your street performance, the Manley 221443P-16 springs are engineered to meet your needs.
Customer Feedback
Customers rave about the Manley 1.580 Dual Valve Springs! Many have noted significant improvements in engine responsiveness and overall power delivery. One user mentioned, "These springs hold up under extreme conditions. I’ve never felt my engine perform better!" Another satisfied customer stated, "Installation was straightforward, and the quality is top-notch. Highly recommend for any serious racer!"
With the Manley 1.580 Dual Valve Springs, you're not just purchasing a product; you're investing in a reliable performance upgrade that will take your engine to the next level.
⚠ 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.
Sale price | None |
Wholesale price | $843.09 |
Shipping |
Weight: 4.00 Length: 15 Width: 4 Height: 4 |
Product Added At | Friday 24 July, 2020 |
Product Modified At | Friday 11 July, 2025 |
Imported By | ETLOverride |
Last Edited By | vendordata@vividracing.com |
View In Admin |
Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
---|---|---|---|---|---|---|---|---|---|---|
Meyer Distributing | $714.48 | $950.31 | $789.80 | $789.80 | ? | 2025-07-11 04:09:53 |
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