Exhaust Valve - Race Series - 1.654 in Head - 0.312 in Valve Stem - 5.100 in Long - Stainless - Mopar Gen III Hemi - Set of 8
About Manley
Our Heritage
Since our inception in March 1966, Manley Performance Products has been at the forefront of the high-performance automotive industry. Founded by gearhead Hank Manley shortly after his graduation from Brown University, our journey began with a deep passion for performance and racing, igniting a legacy that continues to thrive today.Innovators from the Start
Our early offerings, including stainless valves, forged pistons, camshafts, and more, set the stage for innovation in the automotive aftermarket. From our humble beginnings, we’ve come a long way, and our commitment to quality and performance has remained unwavering.Legends Choose Manley
Over the years, we’ve proudly served legends of the racing world like Don Garlits, Bill Jenkins, and “Jungle Jim” Liberman. These partnerships defined an era and fueled our drive to push the limits of automotive excellence.
Expanding Horizons
Our journey has seen us expand, with state-of-the-art facilities in Lakewood, New Jersey, and Orange, California. We offer a constantly evolving product line that caters to modern markets like sport compact, Ford modular, and Chevy LS. We’ve also made our mark as an OEM supplier, earning accolades from industry giants like Ford.Committed to Excellence
As we stride confidently into the future, Manley Performance Products remains committed to redefining excellence in a constantly evolving high-performance aftermarket industry. We invite you to explore our offerings, experience our passion, and join us on this exciting journey of innovation and power.Thank You for Choosing Manley
Enjoy the ride.- Limited Warranty and Limitation of Liability. RWB warrants that any Product manufactured by RWB will be free from defects in material and workmanship for 30 days following date of original purchase (“RWB Warranty”). The RWB Warranty extends to the End-User of such Product. The “End-User” is defined as the person purchasing the Products directly from RWB or an authorized dealer of RWB. RWB specifically disclaims all warranties on any Product or product (express or implied) not manufactured by RWB, as well as any Product or product sold by any third party that is not an authorized dealer of RWB. No warranty is transferable by the End-User. As a condition to granting the RWB Warranty, Buyer covenants to use the Product with due care and consistently with the Product’s specifications. Any failure of Buyer to adhere to this covenant voids the RWB Warranty. Such failure includes, without limitation, misuse, mishandling, misapplication, neglect (including but not limited to improper maintenance), accident, improper installation, modification (including but not limited to use of unauthorized parts or attachments), or adjustment or repair performed by anyone other than RWB.
Our Guarantee
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Best price Guaranteed
Best Price Guaranteed
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Live Chat Support
Live Chat Support- Receive quick answers to your questions during business hours.
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Fastest Shipping
Fastest Shipping- Orders ship within 24 hours. Exclusions Apply.
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30 day return Guarantee
30 Day Guarantee- Refunds within 30 days of the original order date. Exclusions Apply.
Spec Sheet
- BrandManley
- SKUMSMAN12331B-8
