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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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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.
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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: 1.280 in. – Stem Diameter: 0.2345 in. – O/A : 4.340 in. Backcut: 0.100″ x 30? – Set of 8- 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: 1.508 in. – Stem Diameter: 0.2355 in. – O/A : 4.780 in. Backcut: 0.100″ x 30? – Set of 8- 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: 1.260 in. – Stem Diameter: 0.2345 in. – O/A : 4.330 in. Backcut: 0.100″ x 30? – Set of 8
Manley Valve – Exhaust Valve – Ti – Briggs & Stratton Custom – .2740 Stem- 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: 1.485 in. – Stem Diameter: 0.2355 in. – O/A : 4.765 in. Backcut: 0.100″ x 30? – Set of 8
Manley Valve – Exhaust Valve – Ti – Briggs & Stratton Custom – .2475 Stem- 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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CLEAN LOOKS AND A PERFORMANCE SOUND – MBRP SPORT SERIES, Quickly bolt on an MBRP Sport Series exhaust and enjoy the new deep tumble coming from your ATV or SXS. Slam the throttle for an aggressive sound, or cruise all day long without worrying about being obnoxious. This exhaust focuses on enjoying the trails and delivering a balanced tone.
ATV Exhaust System With Sport Muffler; Slip-On System; 1.75 in. Inlet; 4.25 in. Diameter Body;
Chambered Muffler.- Reliable and Dependable Chambered Muffler Design. Mild Exhaust Note. Bolt-on Installation.
- Sport Muffler
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MBRP 00-06 Jeep Wrangler (TJ) Inline-4 2.5L Inline-6 4.0L Cat Back Single Off-Road Turn Down Alum Ex
THE BEST BANG FOR YOUR BUCK – ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP.
Heavy-gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great choice for you if you live in a dry climate that doesn’t see much precipitation, or if you’re looking for great sound on a budget. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine’s cylinders, allowing it to produce more power and improve vehicle performance and longevity. MBRP, Stand out from the crowd with a performance exhaust system that sounds great.
Armor Lite Cat Back Exhaust System; 2.5 in.; Incl. Extension Pipe/Muffler/Hardware/2.5 in. Tip; Single Side Turn Down Assembly Exit; Off Road; Aluminized;
Turn Down Assembly, No Tip Required.- Heavy Duty Aluminized Steel, Fully Sealed Tubing for Rust Resistance. MBRP Signature Styling and Sound.
- Improved Torque And Horsepower
- Lower Exhaust Gas Temperatures
- Utilizes OEM Hangers
- 3 Year Warranty
- Bolt On Design
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MBRP 00-06 Jeep Wrangler (TJ) Inline-4 2.5L Inline-6 4.0L Cat Back Single Off-Road Turn Down T409 Ex
RELIABILITY BACKED FOR A LIFETIME – ARMOR PLUS Series exhaust systems are crafted from corrosion-resistant T409 Stainless Steel – a value-oriented material designed to protect from penetrating rust and will stand up to almost anything you can throw at it.
T409 Stainless Steel tubing is easy to clean. If you’re looking for a performance exhaust system with a Lifetime Warranty, this is probably the one for you. If you don’t find yourself faced with lots of precipitation and salt, this is all you’re ever going to need. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine’s cylinders, allowing it to produce more power and improve vehicle performance and longevity. It’s important to note that T409 Stainless Steel is resistant to penetrating rust but winter conditions, heavy salt air, and road treatments might accelerate the corrosion process, these conditions are not covered by MBRP’s manufacturer warranty unless the part or system fails completely. When it comes to a performance exhaust system, choose the MBRP ARMOR PLUS Series for a reliable option backed for a lifetime. MBRP, Stand out from the crowd with a performance exhaust system that sounds great.
Armor Plus Cat Back Exhaust System; 2.5 in.; Incl. Extension Pipe/Muffler/Hardware/2.5 in. Tip; Single Side Turn Down Assembly Exit; Off Road; T409 Stainless Steel;
Turn Down Assembly, No Tip Required.- Rugged T409 Stainless Steel Construction. MBRP Signature Styling and Sound.
- Stands Up To The Harshest Road Conditions
- Can Improve Fuel Economy By 1-2 MPG
- Installs With Common Hand Tools
- Boosts Torque And Horsepower
- Limited Lifetime Warranty
- Rich Mellow Exhaust Note
- Rugged And Dependable
- Bolt On Design
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THE BEST BANG FOR YOUR BUCK – ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP.
Heavy-gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great choice for you if you live in a dry climate that doesn’t see much precipitation, or if you’re looking for great sound on a budget. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine’s cylinders, allowing it to produce more power and improve vehicle performance and longevity. MBRP, Stand out from the crowd with a performance exhaust system that sounds great.
Armor Lite Resonator Back Exhaust System; 3 in.; Incl. Extension Pipe/Muffler/Tailpipe/Hardware/4 in. OD Tip; Single Side Exit; Aluminized;
4in. Outside Diameter Tip Included.- Heavy Duty Aluminized Steel, Fully Sealed Tubing for Rust Resistance. Bolt-on Installation. MBRP Signature Styling and Sound.
- Raises Muffler For Improved Ground Clearance
- Rich Assertive Exhaust Note
- T304 Stainless Steel Tip
- T304 Mirror Polished
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CLEAN LOOKS AND A PERFORMANCE SOUND – MBRP SPORT SERIES, Quickly bolt on an MBRP Sport Series exhaust and enjoy the new deep tumble coming from your ATV or SXS. Slam the throttle for an aggressive sound, or cruise all day long without worrying about being obnoxious. This exhaust focuses on enjoying the trails and delivering a balanced tone.
ATV Exhaust System With Sport Muffler; Slip-On System; 1.75 in. Inlet; 4.25 in. Diameter Body; Chambered Muffler;
Chambered Muffler.- Mild Exhaust Note. Reliable and Dependable Chambered Design, Increased Flow.
- Sport Muffler
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MBRP 00-11 Polaris Scrambler 500 4×4 / 01-06 Scrambler 500 2×4 Slip-On Combo Exhaust w/Sport Muffler
CLEAN LOOKS AND A PERFORMANCE SOUND – MBRP SPORT SERIES, Quickly bolt on an MBRP Sport Series exhaust and enjoy the new deep tumble coming from your ATV or SXS. Slam the throttle for an aggressive sound, or cruise all day long without worrying about being obnoxious. This exhaust focuses on enjoying the trails and delivering a balanced tone.
ATV Exhaust System With Sport Muffler; Slip-On Combination; 1.75 in. Inlet; 4.25 in. Diameter Body; Chambered Muffler;
Chambered Muffler.- Reliable and Dependable Chambered Muffler Design. Mild Exhaust Note. Increased Flow.
- Sport Muffler
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