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  • Manley Subaru EJ20/EJ25 4340 Billet 83mm Stroke Turbo Tuff Series Crankshaft
    SKU: 190060B

    Manley Turbo Tuff® Billet Crankshafts deliver uncompromising strength, precision, and reliability for high-horsepower and high-boosted applications. Machined from premium 4340 Turbo Tuff® billet material, each crank features gun-drilled pins and fully knife-edged counterweights for reduced weight and superior balance. A multi-step heat treatment and nitriding process maximize durability, while stress relief, shot peening, and 100% magnaflux inspection ensure flawless quality.
    Manley Crankshaft, CRANK-4340 83.0mm STROKE
    Manley Crankshaft, CRANK-4340 83mm STROKE.

    • Enhanced Strength: Heat-treated and nitrided for max durability
    • Counterweights knife-edged for precise balance and stability
    • Quality Assured: Stress-relieved, shot-peened, magnafluxed
    • Direct Shot Oiling for reliable bearing and journal life
  • Manley Subaru EJ25 100mm Bore / 1.209in CD Platinum Series -17cc Dish Extreme Duty Piston Set
    SKU: 632805CE-4

    Our 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. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability.
    Manley Piston Set, PIST-SUBARU 100mm/1.209 CD/DISH E/D.

    • Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff/DLC alloys, providing additional durability.
    • Unique Fixturing: Manley’s unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring ultimate ring groove to skirt squareness.
    • Exacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and more power.
    • Cam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.
    • 2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.
  • Manley Subaru EJ257 100.25mm Bore +.75mm Over Size Bore 8.5:1 CR Dish Piston Set with Rings
    SKU: 612007C-4

    Our 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. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability.

    • Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff/DLC alloys, providing additional durability.
    • Unique Fixturing: Manley’s unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring ultimate ring groove to skirt squareness.
    • Exacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and more power.
    • Cam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.
    • 2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.
  • Manley Subaru EJ257 99.75mm +.25mm Bore 8.5:1 Dish Platinum Series Piston Set with Rings
    SKU: 612202C-4

    Our 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. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability.

    • Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff/DLC alloys, providing additional durability.
    • Unique Fixturing: Manley’s unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring ultimate ring groove to skirt squareness.
    • Exacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and more power.
    • Cam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.
    • 2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.
  • Manley Subaru FA20 86.25 +.25mm -13cc Dome 10.0:1 CR Extreme Duty Dish Pistons w/ Rings
    SKU: 632702CE-4

    Our 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. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability.
    Manley Piston Set, PIST-SUBARU 86.25mm/1.292 CD/DISH .

    • Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff/DLC alloys, providing additional durability.
    • Unique Fixturing: Manley’s unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring ultimate ring groove to skirt squareness.
    • Exacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and more power.
    • Cam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.
    • 2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.
  • Manley Subaru WRX / STI (EJ18/20/22/25) H Beam Connecting Rod Set
    SKU: 14024-4

    When it comes to H-Beam connecting rods, not all are created equal. Manley’s H-Beam Series stands out as a superior choice, offering exceptional quality at an economical price point. These connecting rods are meticulously crafted to meet the same high-quality standards as our renowned Sportsmaster? and Pro Series rods.
    Center To Center Length: 5.137 in. – Big End Bore: 2.165 in. – Pin Bore: 0.9063 in. (23mm Pin) – 3/8″ ARP 2000 Bolts – Approx. HP Rating: 600+
    Manley Connecting Rod, ROD-SUBARU EJ 18/20/22 H/B

    • Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist, is treated with utmost seriousness to deliver connecting rods of the highest quality.
    • Exceptional Performance: Manley’s H-Beam rods are designed to outperform others on the market, giving you a competitive advantage on the track.
    • Flexible Bolt Options: Tailor your connecting rods to your specific requirements with a choice of ARP 8740 or ARP 2000 bolts.
    • Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.
  • Manley Subaru WRX / STI (EJ20/EJ25) Turbo Tuff Pro Series I Beam Connecting Rod - SINGLE ROD
    SKU: 14416-1

    Manley’s Turbo Tuff® I-Beam Connecting Rods represent the epitome of precision, performance, and quality. Engineered with meticulous attention to detail and a finely tuned manufacturing process, these rods are a testament to our commitment to excellence. Elevate your engine’s capabilities and achieve outstanding results with these exceptional connecting rods.
    Center To Center Length: 5.137 in. – Big End Bore: 2.165 in. – Pin Bore: 0.9063 in. (23mm Pin) – 3/8″ ARP 2000 Bolts – Approx. HP Rating: 1000+
    Manley Connecting Rod, ROD-SUBARU WRX EJ20/STi EJ25

    • Designed for ultimate performance with superior materials: forged 4340 or 300M vacuum degassed steel alloys
    • NHRA Legal Certification for some SKUs – Stock and Super Stock
    • Versatile Weight Options: Tour Lites, Light, Standard, Heavy
  • Manley Subaru WRX / STI (EJ205/STi EJ257) Turbo Tuff Pro Series I Beam Connecting Rod Set
    SKU: 14416-4

    Manley’s Turbo Tuff® I-Beam Connecting Rods represent the epitome of precision, performance, and quality. Engineered with meticulous attention to detail and a finely tuned manufacturing process, these rods are a testament to our commitment to excellence. Elevate your engine’s capabilities and achieve outstanding results with these exceptional connecting rods.
    Center To Center Length: 5.137 in. – Big End Bore: 2.165 in. – Pin Bore: 0.9063 in. (23mm Pin) – 3/8″ ARP 2000 Bolts – Approx. HP Rating: 1000+
    Manley Connecting Rod, ROD-SUBARU WRX EJ20/STi EJ25

    • Designed for ultimate performance with superior materials: forged 4340 or 300M vacuum degassed steel alloys
    • NHRA Legal Certification for some SKUs – Stock and Super Stock
    • Versatile Weight Options: Tour Lites, Light, Standard, Heavy
  • Manley Subaru WRX EJ205/STi EJ257 130.5mm H Beam Connecting Rod SINGLE
    SKU: 15024-1

    When it comes to H-Beam connecting rods, not all are created equal. Manley’s H-Beam Series stands out as a superior choice, offering exceptional quality at an economical price point. These connecting rods are meticulously crafted to meet the same high-quality standards as our renowned Sportsmaster? and Pro Series rods.
    Center To Center Length: 5.137 in. – Big End Bore: 2.165 in. – Pin Bore: 0.9063 in. (23mm Pin) – 3/8″ ARP 2000 – Approx. HP Rating: 750+
    Manley Connecting Rod, ROD-SUBARU EJ 18/20/22 H/T

    • Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist, is treated with utmost seriousness to deliver connecting rods of the highest quality.
    • Exceptional Performance: Manley’s H-Beam rods are designed to outperform others on the market, giving you a competitive advantage on the track.
    • Flexible Bolt Options: Tailor your connecting rods to your specific requirements with a choice of ARP 8740 or ARP 2000 bolts.
    • Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.
  • Manley Subaru WRX EJ205/STi EJ257 33mm Race Master Exhaust Valves (Set of 8)
    SKU: 11171-8

    Manley?s 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
    Manley Valve – Exhaust, Valve-R/M SUBARU WRX 32mm.

    • Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.
    • Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.
    • Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.
    • Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine’s specific requirements.
    • Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.
  • Manley Subaru WRX/STi .490in Valve Spring and Retainer Kit (w/o Valve Locks) (16 each)
    SKU: 26185

    Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. 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.
    Max Lift: 0.510″ – Spring: 22185-16 – Titanium Retainer: 23185-16
    Manley Sport Compatct Valve Spring and Retainer Kit

    • Includes matched Valve Springs, Retainers, and Locks (if part number ends in “K”). Spring Locators included in some applications.
    • Includes 7 Machined Valve Locks manufactured from the premium quality heat treated steel
    • Heat treated aerospace grade titanium retainers CNC machined to exacting tolerances
    • Designed to handle aftermarket camshafts and up to 10,000 RPM
  • Manley Subaru WRX/STI 16pc Valve Springs  (1.050/.755)  (for use with 23180-16 Retainers)
    SKU: 22180-16

    Engineered for today’s high-revving sport compact engines, Manley valve springs deliver exceptional durability, precise control, and consistent performance. Manufactured from premium alloys and designed for demanding turbocharged and naturally aspirated applications, they ensure reliable valvetrain stability at elevated RPM and boost levels.
    Manley Valve Spring, SPRING-SUBARU WRX .

    • Revs up to 10,000 RPM with Manley titanium retainers
    • Designed to handle aftermarket camshafts
    • Wound from super clean alloy
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