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we’re providing the core strength your engine build demands. The Pro Series 4340 Alloy Steel Crankshaft is an efficient and precisely balanced foundation for performance, built not just to survive, but to handle extremes across a wide range of applications.
Manley Crankshaft, CRANK-4340 4.000 STROKE.- 4340 Non-Twist Forging: Lightweight, high-strength design for max performance
- Gun-drilled mains and lightened journals cut weight
- Heat-treated and nitrided for durability
- Micro-polished journals reduce friction
- 100% magnaflux-inspected
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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-4.030/1.280CD/FT.- 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.
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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-4.040/1.280CD/FT.- 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.
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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-4.060/1.280CD/FT.- 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.
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Manley 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.
Head Diameter: 1.575 in. – Stem Diameter: .3136 in. – O/A : 4.923
Manley Valve – Exhaust, Valve-LS1 S/D 1.575.- Swirl polishing and machined faces improved airflow/optimized efficiency
- Exotic alloys for superior tensile strength, reliability, and longevity
- Proven fatigue strength for extreme performance
- Chrome stems and hard tips enhance durability
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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
Head Diameter: 2.165 in. – Stem Diameter: 0.3133 in. – O/A : 4.900 in.
Manley Valve – Intake, Valve-L-92 R/F 2.165.- 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.
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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
Head Diameter: 1.590 in. – Stem Diameter: 0.3136 in. – O/A : 4.923 in.
Manley Valve – Exhaust, Valve-L-92 R/M 1.590.- 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.
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Manley 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.
Manley Valve – Exhaust, Valve-LS7 S/D 1.615.- Swirl polishing and machined faces improved airflow/optimized efficiency
- Exotic alloys for superior tensile strength, reliability, and longevity
- Proven fatigue strength for extreme performance
- Chrome stems and hard tips enhance durability
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Manley 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.
Manley Valve – Exhaust, Valve-S/D LT1 6.2L 1.590, .3136 STEM.- Swirl polishing and machined faces improved airflow/optimized efficiency
- Exotic alloys for superior tensile strength, reliability, and longevity
- Proven fatigue strength for extreme performance
- Chrome stems and hard tips enhance durability
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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: 6.125 in. – Big End Bore: 2.225 in. – Pin Bore: 0.9281 in. – 7/16″ ARP 2000 Bolts – Approx. HP Rating: 900
Manley Connecting Rod, ROD-14051 W/ARP 2000- 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.
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Manley Performance “PRO SERIES” stroker crankshaft designed for the Gen III small block HEMI engine. Manufactured from a premium 4340 steel forging, these cranks feature a 4.050” stroke which can turn your 5.7L into a 392 c.i. engine and your 6.1L/6.4L into a 426 c.i. engine. The Manley 4.050” stroke HEMI crankshaft features small block Chevy small journal (2.000″) crank pin diameters and widths. This provides taller “side walls” on the crankshaft rod journals for better oil control and reduced windage. Counterweights are profiled for 6.125″ connecting rods.
Stroke: 4.050 in. – Rod Journal: 2.000 in. – Reluctor Wheel: 58 Tooth – Bobweight: 1730 grams (Not Balanced/Non-Drilled)
When installing these crankshafts in a VVT engine, you also need to order a crankshaft gear spacer part number 42000 – Crank is NOT balanced and has non-drilled counterweights – All 2013 and later 58 tooth reluctor wheels have a tooth width of .130”, along with a dimple in the rear face of the wheel – All reluctor wheels are attached with 4 fasteners- Multi-step heat treatment process and nitrided for added strength to already strong forged 4340 material
- Micro polished large radius journals (narrow rod bearings required)
- Gun drilled mains and lightened rod journals for weight reduction
- Stress relieved, shot-peened and 100% magnafluxed
- Dual keyed post for supercharger drive pulleys
- Counterweights fully profiled
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Manley Performance “PRO SERIES” stroker crankshaft designed for the Gen III small block HEMI engine. Manufactured from a premium 4340 steel forging, these cranks feature a 4.050” stroke which can turn your 5.7L into a 392 c.i. engine and your 6.1L/6.4L into a 426 c.i. engine. The Manley 4.050” stroke HEMI crankshaft features small block Chevy small journal (2.000″) crank pin diameters and widths. This provides taller “side walls” on the crankshaft rod journals for better oil control and reduced windage. Counterweights are profiled for 6.125″ connecting rods.
Stroke: 4.050 in. – Rod Journal: 2.000 in. – Reluctor Wheel: 58 Tooth – Bobweight: 1730 grams
When installing these crankshafts in a VVT engine, you also need to order a crankshaft gear spacer part number 42000 – All 2013 and later 58 tooth reluctor wheels have a tooth width of .130”, along with a dimple in the rear face of the wheel – All reluctor wheels are attached with 4 fasteners- Multi-step heat treatment process and nitrided for added strength to already strong forged 4340 material
- Micro polished large radius journals (narrow rod bearings required)
- Gun drilled mains and lightened rod journals for weight reduction
- Stress relieved, shot-peened and 100% magnafluxed
- Dual keyed post for supercharger drive pulleys
- Counterweights fully profiled
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