{"title":"Manley Performance","description":"\u003cp\u003eShop Manley Performance at SPEEDBRED — genuine Manley Performance performance parts and accessories for street and track builds. We stock a deep selection with fast shipping and real enthusiast support, so you can build with confidence. Browse the full Manley Performance lineup below.\u003c\/p\u003e","products":[{"product_id":"manley-16pc-10-deg-titanium-retainers-for-615in-900in-id-springs-23619-16","title":"Manley 16pc 10 Deg Titanium Retainers for .615in\/.900in ID Springs - 23619-16","description":"\u003cp\u003eUpgrade your valve train with Manley Performance Titanium Retainers and other lightweight titanium options designed specifically for high-revving engines. Machined from aerospace-grade heat-treated 6AL-4V titanium, these retainers dramatically reduce valvetrain mass for quicker rev-up, improved valve control and enhanced overall responsiveness. The reduced weight helps your engine hold spring pressure at high RPM, minimizing float and unlocking more performance potential in race or aggressive street applications. Lightweight, strong, and precision-built for serious performance.\u003c\/p\u003e\n\u003cp\u003eManley Spring Retainer, RET-TI 1.335 10 DEG +.050.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSpecial 6AL-4V titanium for maximum strength\u003c\/li\u003e\n\u003cli\u003eExcellent value for all forms of racing\u003c\/li\u003e\n\u003cli\u003eSqueeze more RPMs out of your engine\u003c\/li\u003e\n\u003cli\u003eCNC machined to exacting tolerances\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":63303476969553,"sku":"man23619-16","price":277.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/files\/1234558071174264e9f4b44e854df8cc_6c1d46a1-3ebf-4ad5-a69a-6504910874f0.jpg?v=1793226174"},{"product_id":"manley-ford-4-6l-5-4l-sohc-45-5mm-race-master-intake-valves-set-of-8-11640b-8","title":"Manley Ford 4.6L \u0026 5.4L SOHC 45.5mm Race Master Intake Valves *Set of 8* - 11640B-8","description":"\u003cp\u003eManley Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM.\u003c\/p\u003e\n\u003cp\u003eManley Valve - Intake, Valve-FD MOD R\/M 45.5mm.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRecommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.\u003c\/li\u003e\n\u003cli\u003eSwirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.\u003c\/li\u003e\n\u003cli\u003eStainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.\u003c\/li\u003e\n\u003cli\u003eVariety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.\u003c\/li\u003e\n\u003cli\u003eChrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":63303538147409,"sku":"man11640B-8","price":202.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/files\/5f4b70fa0b8a870e0877005e4b8d1853_bceb88ac-47d4-447f-8f0f-97d6b626b95f.jpg?v=1793226264"},{"product_id":"manley-98-subaru-wrx-ej205-93-0mm-bore-1-0mm-oversize-bore-1-2mmx1-2mmx2-8mm-ring-set-46930-4","title":"Manley 98+ Subaru WRX EJ205 93.0mm Bore +1.0mm Oversize Bore 1.2mmx1.2mmx2.8mm Ring Set - 46930-4","description":"\u003cp\u003eManley Performance offers a comprehensive range of high-quality piston rings, meticulously engineered to provide a reliable and durable seal. Manley offers Premium Steel Top Rings, Ductile Iron Top Rings with Plasma-Moly Inlay, Napier-Style Second Rings, Total Seal® Gapless® Top Ring Packages, and File Fit Options that cover a wide range of bore sizes and engine applications, ensuring compatibility and optimal performance across various engine builds.\u003c\/p\u003e\n\u003cp\u003eManley Piston Ring-93.0mm 1.2mm,1.2mm,2.8mm.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eConventional sets feature high performance ductile iron (with plasma moly in-lay) top rings, reverse twist cast iron taper face or Napier style second rings and 3 piece oil rings\u003c\/li\u003e\n\u003cli\u003eManley also offers Total Seal® famed Gapless® top ring packages for many of our piston applications\u003c\/li\u003e\n\u003cli\u003ePremium Steel top ring sets are ideal for high horsepower and forced induction\/nitrous applications\u003c\/li\u003e\n\u003cli\u003eAll Premium Steel ring sets and Gapless® top ring sets utilize Napier style second rings standard.\u003c\/li\u003e\n\u003cli\u003eManley stocks conventional style piston ring sets and Premium Steel top ring versions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":63304130658385,"sku":"man46930-4","price":161.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/files\/4d027b9a-b8fc-4582-b65c-dcfaeecb4c9c-800.jpg?v=1793226986"},{"product_id":"manley-small-block-chevy-1-600in-head-dia-severe-duty-exhaust-valves-set-of-8-12337-8","title":"Manley Small Block Chevy 1.600in Head Dia Severe Duty Exhaust Valves (Set of 8) - 12337-8","description":"\u003cp\u003eManley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400°F, Manley exhaust valves endured 100 million cycles, while competitors failed after just 100,000, proving a 1,000× longer fatigue life. Each valve features chrome stems, hard tips, and swirl-polished underheads with fully machined combustion faces for superior airflow, efficiency, and wear resistance. Built for those who demand race-winning strength and precision, Manley Severe Duty® Valves set the industry standard for performance and endurance.\u003c\/p\u003e\n\u003cp\u003eManley Valve - Exhaust, Valve-S\/D 1.600, +.100, .3136 STEM .\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSwirl polishing and machined faces improved airflow\/optimized efficiency\u003c\/li\u003e\n\u003cli\u003eExotic alloys for superior tensile strength, reliability, and longevity\u003c\/li\u003e\n\u003cli\u003eProven fatigue strength for extreme performance\u003c\/li\u003e\n\u003cli\u003eChrome stems and hard tips enhance durability\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":63304241938513,"sku":"man12337-8","price":301.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/files\/9f3fe65eab22c1b800b67cb4ba0de39eL_1b4ad122-abab-4c43-b475-e556888a23c9.jpg?v=1793227155"},{"product_id":"manley-chevrolet-small-block-exhaust-valve-kit-1-600in-head-dia-5-640in-o-a-length-0-3110in-stem-11343-8","title":"Manley Chevrolet Small Block Exhaust Valve Kit - 1.600in Head Dia. 5.640in O\/A Length, 0.3110in Stem - 11343-8","description":"\u003cp\u003eManley Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM.\u003c\/p\u003e\n\u003cp\u003eManley Valve - Exhaust, Valve-R\/M 1.600,+.700.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; 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Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400°F, Manley exhaust valves endured 100 million cycles, while competitors failed after just 100,000, proving a 1,000× longer fatigue life. Each valve features chrome stems, hard tips, and swirl-polished underheads with fully machined combustion faces for superior airflow, efficiency, and wear resistance. Built for those who demand race-winning strength and precision, Manley Severe Duty® Valves set the industry standard for performance and endurance.\u003c\/p\u003e\n\u003cp\u003eManley Valve - Intake, Valve-S\/D 2.100,+.300.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSwirl polishing and machined faces improved airflow\/optimized efficiency\u003c\/li\u003e\n\u003cli\u003eExotic alloys for superior tensile strength, reliability, and longevity\u003c\/li\u003e\n\u003cli\u003eProven fatigue strength for extreme performance\u003c\/li\u003e\n\u003cli\u003eChrome stems and hard tips enhance durability\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":63304246427729,"sku":"man11750-8","price":301.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/files\/1234558071174264e9f4b44e854df8cc_c5d602b8-7f7e-4242-929c-4f622f72efb2.jpg?v=1793227189"},{"product_id":"manley-chevrolet-big-block-intake-valve-kit-2-190in-head-dia-5-344in-o-a-length-0-3415in-stem-10894-8","title":"Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.344in O\/A Length, 0.3415in Stem - 10894-8","description":"\u003cp\u003eManley Street Series valves are the ideal choice for enthusiasts looking to boost the performance of a stock or mildly modified street engine.\u003c\/p\u003e\n\u003cp\u003eManley Valve - Intake, Valve-BBC S\/M 2.190,+.100.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHigh-Quality Stainless Steel: Our Street Series valves, available as XH-424 for exhaust and NK-841 for intake, are crafted from top-grade stainless steel, ensuring durability and longevity.\u003c\/li\u003e\n\u003cli\u003eSwirl Polished and Fully Machined: The under head areas are meticulously swirl polished, and the combustion faces are fully machined, enhancing airflow and combustion efficiency.\u003c\/li\u003e\n\u003cli\u003eChrome Stems and Hard Tips: These valves feature chrome stems and hard tips for increased durability and wear resistance, making them suitable for demanding applications.\u003c\/li\u003e\n\u003cli\u003eVariety of Shapes: Choose from the Street Master (Straight Stem) or Street Flo shapes, allowing you to customize your valve selection based on your specific needs.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":63304246984785,"sku":"man10894-8","price":148.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/files\/1234558071174264e9f4b44e854df8cc_d44f27da-f4f6-4f1a-9bca-42f5983344b4.jpg?v=1793227198"},{"product_id":"manley-8-250in-length-5-16in-chrome-moly-swedged-end-pushrods-set-of-16-25701-16","title":"Manley 8.250in Length 5\/16in Chrome Moly Swedged End Pushrods (Set of 16) - 25701-16","description":"\u003cp\u003eManley Performance Pushrods are engineered to deliver uncompromising strength, stiffness, and valvetrain stability in today’s high-performance engines. Manufactured from premium materials and precision heat-treated for maximum durability, Manley pushrods are designed to resist deflection under high spring loads and extreme RPM conditions. Consistent wall thickness and exacting tolerances ensure reliable valve timing and long-term performance in both street and race applications. Backed by decades of racing heritage and proven in the most demanding environments, Manley pushrods provide the confidence and reliability serious engine builders expect.\u003c\/p\u003e\n\u003cp\u003eManley Pushrod, 4130 5\/16 +.450.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eExcellent concentricity, closely controlled\u003c\/li\u003e\n\u003cli\u003eMeticulously formed ends with exact radii\u003c\/li\u003e\n\u003cli\u003eHeat treated and black oxide finished\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":63304262418513,"sku":"man25701-16","price":199.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/files\/a84f6d3b9b3becb11000635c5a0f47d3L_e278b1af-f8f9-4eba-b6b2-3a9c9a9cf0b5.jpg?v=1793227438"},{"product_id":"manley-ford-4-6l-dohc-4-valve-triple-groove-31mm-race-master-exhaust-valves-11617-8","title":"Manley Ford 4.6L DOHC (4 Valve) Triple Groove 31mm Race Master Exhaust Valves - 11617-8","description":"\u003cp\u003eManley Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM.\u003c\/p\u003e\n\u003cp\u003eManley Valve - Exhaust, Valve-FD MOD R\/M 31mm.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRecommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.\u003c\/li\u003e\n\u003cli\u003eSwirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.\u003c\/li\u003e\n\u003cli\u003eStainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.\u003c\/li\u003e\n\u003cli\u003eVariety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.\u003c\/li\u003e\n\u003cli\u003eChrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":63304278278225,"sku":"man11617-8","price":202.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/files\/group-cf540d4a-499f-4465-9c1e-fb373a3638f4-800_6455ab10-f38e-48c4-ab9b-2342dc9280d7.jpg?v=1793227683"},{"product_id":"manley-chevrolet-big-block-2-300-head-3415-stem-350-longer-severe-duty-valves-set-of-8-11878-8","title":"Manley Chevrolet Big Block 2.300 Head, .3415 Stem, .350 Longer Severe Duty Valves (Set of 8) - 11878-8","description":"\u003cp\u003eManley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. 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Built for those who demand race-winning strength and precision, Manley Severe Duty® Valves set the industry standard for performance and endurance.\u003c\/p\u003e\n\u003cp\u003eManley Valve - Intake, Valve-S\/D 2.300,+.350.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSwirl polishing and machined faces improved airflow\/optimized efficiency\u003c\/li\u003e\n\u003cli\u003eExotic alloys for superior tensile strength, reliability, and longevity\u003c\/li\u003e\n\u003cli\u003eProven fatigue strength for extreme performance\u003c\/li\u003e\n\u003cli\u003eChrome stems and hard tips enhance durability\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":63304279752785,"sku":"man11878-8","price":311.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/files\/5f4b70fa0b8a870e0877005e4b8d1853_aa9afd1b-d317-41a8-ad46-ffde25bd321e.jpg?v=1793227700"},{"product_id":"manley-chevrolet-small-block-intake-valve-kit-2-020in-head-dia-5-125in-o-a-length-0-3415in-stem-10798-8","title":"Manley Chevrolet Small Block Intake Valve Kit - 2.020in Head Dia. 5.125in O\/A Length, 0.3415in Stem - 10798-8","description":"\u003cp\u003eManley Street Series valves are the ideal choice for enthusiasts looking to boost the performance of a stock or mildly modified street engine.\u003c\/p\u003e\n\u003cp\u003eManley Valve - Intake, Valve-SBC S\/F 2.020,+.200.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; 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Engineered for maximum durability, stability, and precision in high-performance and racing applications, these chrome-silicon alloy springs provide exceptional fatigue resistance and high-tensile strength, ensuring consistent valve control at extreme RPMs. Save time and money with these kits, featuring premium springs, retainers, designed to handle aggressive aftermarket camshafts.\u003c\/p\u003e\n\u003cp\u003eManley Sport Compact Valve Spring and Retainer Kit\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIncludes matched Valve Springs, Retainers, and Locks (if part number ends in \"K\"). 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When performance matters, Manley Titanium Valves power the winners.\u003c\/p\u003e\n\u003cp\u003eManley Valve - Intake, Valve-TI SMALL BLOCK 2.100\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLightweight titanium reduces valvetrain mass and boosts efficiency\u003c\/li\u003e\n\u003cli\u003eBuilt for extreme RPM and aggressive cams\u003c\/li\u003e\n\u003cli\u003eRigorously inspected for reliability\u003c\/li\u003e\n\u003cli\u003ePremium alloys ensure durability\u003c\/li\u003e\n\u003cli\u003eOne-piece forged for strength\u003c\/li\u003e\n\u003cli\u003eCNC machined for precision\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":63334927138897,"sku":"man11478HTB-8","price":1498.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/files\/1234558071174264e9f4b44e854df8cc_675b117e-fa1a-46af-b3df-bf6dee6ea7b1.jpg?v=1793276664"},{"product_id":"manley-nissan-gt-r-3-8l-vr38dett-94-4mm-stroker-95-5mm-bore-grade-3-1-5cc-piston-w-ring-single-633egr3-1","title":"Manley Nissan GT-R 3.8L VR38DETT 94.4mm Stroker 95.5mm Bore Grade 3 -1.5cc Piston w\/Ring (Single) - 633EGR3-1","description":"\u003cp\u003eOur signature \"Platinum Series\" pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers. 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For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff\/DLC alloys, providing additional durability.\u003c\/li\u003e\n\u003cli\u003eUnique Fixturing: Manley's unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring ultimate ring groove to skirt squareness.\u003c\/li\u003e\n\u003cli\u003eExacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and more power.\u003c\/li\u003e\n\u003cli\u003eCam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.\u003c\/li\u003e\n\u003cli\u003e2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":63334928416849,"sku":"man633EGR3-1","price":255.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/files\/b3dbaefd457f902c51859cff76604114L_9a74f142-bed7-47ff-8277-4b3d0399089e.jpg?v=1793276678"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1079\/2688\/0337\/collections\/1234558071174264e9f4b44e854df8cc.jpg?v=1792202362","url":"https:\/\/speedbred.com\/collections\/manley-performance.oembed","provider":"SPEEDBRED","version":"1.0","type":"link"}