Rocker Arm Systems

Why Manton Rocker Arms?

Manton rocker arms deliver unparalleled valvetrain stability by perfectly balancing structural rigidity, effective operating weight, and advanced friction reduction. By utilizing premium steel alloys and optimized I-beam cross-sections, they maximize stiffness to prevent destructive flex and protect surrounding engine components from harmful energy transfer. Paired with friction-reducing roller tips, precision-ground shafts, and a sophisticated three-tier oiling system, this ultra-durable design manages extreme loads to ensure precise valve control.
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  • Manton Rocker Arms RA LS1-RKR-KIT-A - Engine Rocker Arm Kit

    LS1 - Manton Rocker Arm System ( Bolt on )

    LS1 - Manton Rocker Arm System ( Bolt on )

    • Fulcrum Length: Factory

    • Ratio: Factory

    • Adjusting Screw: 5/16 Ball

    • Nose Offset: Factory

     SKU: RA LS1-RKR-KIT-A
    $3,068.71 USD

    LS1 - Manton Rocker Arm System ( Bolt on )
  • Manton Rocker Arms RA DN9-RKR-SYS-S - Engine Rocker Arm Kit

    Manton's Brodix DN-9 Big Block Chevy Cylinder Head Shaft Mounted Rocker Arm System

    Manton's Brodix DN-9 Big Block Chevy Cylinder Head Shaft Mounted Rocker Arm System

    • Billet Steel Rocker Arm Body and Stands

    • Tool Steel Roller and Pin

    • H-13 Adjusting Screw

    • Intake Ratio: 1.85

    • Exhaust Ratio: 1.81

     SKU: RA DN9-RKR-SYS-S
    $4,850.50 USD

    Manton's Brodix DN-9 Big Block Chevy Cylinder Head Shaft Mounted Rocker Arm System
  • Stage V RA STGV-SYS-426 - Engine Rocker Arm Kit

    Stage V by Manton - 426 Hemi Rocker Arm System

    Stage V by Manton - 426 Hemi Rocker Arm System

    • Cast Stainless Steel, Core Hardened Rocker Arms

    • Billet Aluminum Shaft Stands

    • 4130 Chromoly Rocker Arm Shafts

    • H-13 Tool Steel Adjusting Screws

     SKU: RA STGV-SYS-426
    $0.00 USD

    Stage V by Manton - 426 Hemi Rocker Arm System
  • Manton Rocker Arms RA VENEY26-RKR-SYS - Engine Rocker Arm Kit

    Manton's Ken Veney Hemi 2.600 Intake Valve Cylinder Head Shaft Mount Rocker Arm System

    Manton's Ken Veney Hemi 2.600 Intake Valve Cylinder Head Shaft Mount Rocker Arm System

    • Billet Alloy Rocker Arm Body, Billet Aluminum Stands

    • Tool Steel Roller and Pin

    • H-13 Adjusting Screw 3/8 Ball

    • Intake Ratio: 1.82

    • Exhaust Ratio 1.71

     SKU: RA VENEY26-RKR-SYS
    $9,189.16 USD

    Manton's Ken Veney Hemi 2.600 Intake Valve Cylinder Head Shaft Mount Rocker Arm System
  • Manton Rocker Arms RA 4900MN-RKR-SYS - Engine Rocker Arm Kit

    Manton's 4.900 Noonan Hemi Shaft Mount Rocker Arm System

    Manton's 4.900 Noonan Hemi Shaft Mount Rocker Arm System

    • Billet Alloy Rocker Arm Body and Billet Aluminum Stands

    • Tool Steel Roller and Pin

    • H-13 Adjusting Screw 3/8 Ball

    • Exh Ratio: 1.75 or 1.8, Intake Ratio: 1.70 or 1.75

     SKU: RA 4900MN-RKR-SYS
    $10,191.43 USD

    Manton's 4.900 Noonan Hemi Shaft Mount Rocker Arm System
  • Manton Rocker Arms RA ROX-RKR-SYS - Engine Rocker Arm Kit

    Manton's Edelbrock ROX 4.500 Bore Space Cylinder Head Shaft Mounted Rocker Arm System

    Manton's Edelbrock ROX 4.500 Bore Space Cylinder Head Shaft Mounted Rocker Arm System

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller and Pin

    • H-13 Adjusting Screw 5/16 or 3/8 Ball

    • Intake Ratio: 1.85

    • Exhaust Ratio: 1.75

     SKU: RA ROX-RKR-SYS
    $5,173.86 USD

    Manton's Edelbrock ROX 4.500 Bore Space Cylinder Head Shaft Mounted Rocker Arm System
  • Manton Rocker Arms RA LT-RKR-SYS-CID - Engine Rocker Arm Kit

    Manton's CID LT Shaft Mounted Rocker Arm System

    Manton's CID LT Shaft Mounted Rocker Arm System

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw

    • 1.81 Ratio

    • CID LT Heads

     SKU: RA LT-RKR-SYS-CID
    $4,576.66 USD

    Manton's CID LT Shaft Mounted Rocker Arm System
  • Manton Rocker Arms RA LT4-RKR-SYS - Engine Rocker Arm Kit

    Manton's LT4 Shaft Mounted Rocker Arm System, OEM Style Heads

    Manton's LT4 Shaft Mounted Rocker Arm System, OEM Style Heads

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw

    • 1.81 Ratio

    • Factory LT4 Head

    SKU: RA LT4-RKR-SYS
    $4,576.66 USD

    Manton's LT4 Shaft Mounted Rocker Arm System, OEM Style Heads
  • Manton Rocker Arms RA 45BSP-RKR-SYS-10DEG - Engine Rocker Arm Kit

    Manton's All Pro, Brodix 4.500 Bore Space, 10 Degree Cylinder Head Shaft Mounted Rocker Arm System, Dirt Late Model

    Manton's All Pro, Brodix 4.500 Bore Space, 10 Degree Cylinder Head Shaft Mounted Rocker Arm System, Dirt Late Model

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw (5/16 Ball or 3/8 Ball)

    • Available Ratios: 1.80, 1.75, 1.70

     SKU: RA 45BSP-RKR-SYS-10DEG
    $4,850.50 USD

    Manton's All Pro, Brodix 4.500 Bore Space, 10 Degree Cylinder Head Shaft Mounted Rocker Arm System, Dirt Late Model
  • Manton Rocker Arms RA 44BSP-RKR-SYS-10DEG - Engine Rocker Arm Kit

    Manton's All Pro, Brodix 4.400 Bore Space, 10 Degree Cylinder Head Shaft Mounted Rocker Arm System, 410 Sprint Car

    Manton's All Pro, Brodix 4.400 Bore Space, 10 Degree Cylinder Head Shaft Mounted Rocker Arm System, 410 Sprint Car

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw (5/16 Ball or 3/8 Ball)

    • Available Ratios: 1.80, 1.75, 1.70

     SKU: RA 44BSP-RKR-SYS-10DEG
    $4,850.50 USD

    Manton's All Pro, Brodix 4.400 Bore Space, 10 Degree Cylinder Head Shaft Mounted Rocker Arm System, 410 Sprint Car
  • Manton Rocker Arms RA BRX18-RKR-SYS - Engine Rocker Arm Kit

    Manton's Brodix BR X 18 Big Block Chevy Cylinder Head Shaft Mounted Rocker Arm System

    Manton's Brodix BR X 18 Big Block Chevy Cylinder Head Shaft Mounted Rocker Arm System

    • Billet Steel Rocker Arm Body and Stands

    • Tool Steel Roller and Pin

    • H-13 Adjusting Screw

    • Intake Ratio: 1.72, 1.90

    • Exhaust Ratio: 1.72, 1.81, 1.90

     SKU: RA BRX18-RKR-SYS
    $4,850.50 USD

    Manton's Brodix BR X 18 Big Block Chevy Cylinder Head Shaft Mounted Rocker Arm System
  • Manton Rocker Arms RA 45080BP - Engine Rocker Arm Kit

    Manton's Fathead Hemi - High Ratio Rocker Arm System

    Manton's Fathead Hemi - High Ratio Rocker Arm System

    • Tool Steel Intake Rocker1.8 Ratio

    • Tool Steel Exhaust Rocker 1.7 Ratio

    • 4130 Chromoly Rocker Shafts

    • Billet Aluminum Stands

    • H-13 Adjusting Screws

     SKU: RA 45080BP
    $6,232.66 USD

    Manton's Fathead Hemi - High Ratio Rocker Arm System
  • Manton Rocker Arms RA LT-RKR-SYS - Engine Rocker Arm Kit

    Manton's LT - Rocker Arm System (LME Edelbrock ONLY)

    Manton's LT - Rocker Arm System (LME Edelbrock ONLY)

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw

    • 1.81 Ratio

     SKU: RA LT-RKR-SYS
    $4,450.66 USD

    Manton's LT - Rocker Arm System (LME Edelbrock ONLY)
  • Manton Rocker Arms RA LS7-RKR-SYS-F710T - Engine Rocker Arm Kit

    Manton's LS7 Frankenstein F710 Long Valve Cylinder Head Shaft Mounted Rocker Arm System, (5.865 Valve Length)

    Manton's LS7 Frankenstein F710 Long Valve Cylinder Head Shaft Mounted Rocker Arm System, (5.865 Valve Length)

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw

    • 1.81 Ratio

     SKU: RA LS7-RKR-SYS-F710T
    $4,450.66 USD

    Manton's LS7 Frankenstein F710 Long Valve Cylinder Head Shaft Mounted Rocker Arm System, (5.865 Valve Length)
  • Manton Rocker Arms RA LS-CR-RKR-SYS - Engine Rocker Arm Kit

    Manton's CID LS-CR Cylinder Head Shaft Mounted Rocker Arm System

    Manton's CID LS-CR Cylinder Head Shaft Mounted Rocker Arm System

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw

    • 1.81 Ratio

     SKU: RA LS-CR-RKR-SYS
    $4,850.50 USD

    Manton's CID LS-CR Cylinder Head Shaft Mounted Rocker Arm System
  • Manton Rocker Arms RA LS7-RKR-SYS-STS - Engine Rocker Arm Kit

    LS7 Staggered Bolt Pattern Shaft Mounted Rocker Arm System

    LS7 Staggered Bolt Pattern Shaft Mounted Rocker Arm System

    High-performance system includes

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw

    • 1.81 Ratio

    SKU: RA LS7-RKR-SYS-STS
    $4,450.66 USD

    LS7 Staggered Bolt Pattern Shaft Mounted Rocker Arm System
  • Manton Rocker Arms RA LS3-RKR-KIT-A - Engine Rocker Arm Kit

    Manton's LS3 Rocker Arm System ( Bolt on )

    Manton's LS3 Rocker Arm System ( Bolt on )

    • Ratio: Factory

    • Pushrod Offset: Factory

    • Adjuster: 5/16 ball

    • Oiling Type: Pressure fed

     SKU: RA LS3-RKR-KIT-A
    $3,068.71 USD

    Manton's LS3 Rocker Arm System ( Bolt on )
  • Manton Rocker Arms RA SR71-RKR-SYS - Engine Rocker Arm Kit

    Manton's Kaase SR-71 Cylinder Head Shaft Mounted Rocker Arm System

    Manton's Kaase SR-71 Cylinder Head Shaft Mounted Rocker Arm System

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw

    • 1.72 Ratio

     SKU: RA SR71-RKR-SYS
    $4,850.50 USD

    Manton's Kaase SR-71 Cylinder Head Shaft Mounted Rocker Arm System
  • Manton Rocker Arms GEN3-KIT-F - Engine Rocker Arm Kit

    Gen 3 Hemi - Rocker Arm System ( Non Adjustable )

    Gen 3 Hemi - Rocker Arm System ( Non Adjustable )

    • Tool Steel construction

    • Tool Steel Pin and Roller

    • Pressure-fed oiling to pushrod

    • Nitride Coated 4130 Chromoly Steel .250 Wall Rocker Shafts

     SKU: GEN3-KIT-F
    $4,365.90 USD

    Gen 3 Hemi - Rocker Arm System ( Non Adjustable )
  • Manton Rocker Arms RA BBC-SYS - Engine Rocker Arm Kit

    Manton Billet Steel Rocker Arm System - Big Block Chevy | 1.72 Ratio

    Manton Billet Steel Rocker Arm System - Big Block Chevy | 1.72 Ratio

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw

    • 1.72 Ratio

     SKU: RA BBC-SYS
    $4,850.50 USD

    Manton Billet Steel Rocker Arm System - Big Block Chevy | 1.72 Ratio
  • Manton Rocker Arms RA 47080BP - Engine Rocker Arm Kit

    Manton's Fathead Hemi - Low Ratio Rocker Arm System (Raised Exhaust)

    Manton's Fathead Hemi - Low Ratio Rocker Arm System (Raised Exhaust)

    • Tool Steel Intake Rocker 1.8 Ratio

    • Tool Steel Exhaust Rocker 1.6 Ratio

    • 4130 Chromoly Rocker Shafts

    • Billet Aluminum Stands

    • H-13 Adjusting Screws

     SKU: RA 47080BP
    $6,232.66 USD

    Manton's Fathead Hemi - Low Ratio Rocker Arm System (Raised Exhaust)
  • Manton Rocker Arms RA LSN-RKR-KIT - Engine Rocker Arm Kit

    Manton's - Noonan LS Edge - Rocker Arm Kit (Stands Not Included)

    Manton's - Noonan LS Edge - Rocker Arm Kit (Stands Not Included)

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw

    • Intake 1.75 Ratio

    • Exhaust 1.72 ratio

     SKU: RA LSN-RKR-KIT
    $3,979.06 USD

    Manton's - Noonan LS Edge - Rocker Arm Kit (Stands Not Included)
  • Manton Rocker Arms RA LS7-RKR-SYS-F710S - Engine Rocker Arm Kit

    Manton's LS7 Frankenstein F710 Short Valve Cylinder Head Shaft Mounted Rocker Arm System, (5.655 Valve Length)

    Manton's LS7 Frankenstein F710 Short Valve Cylinder Head Shaft Mounted Rocker Arm System, (5.655 Valve Length)

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw

    • 1.81 Ratio

     SKU: RA LS7-RKR-SYS-F710S
    $4,450.66 USD

    Manton's LS7 Frankenstein F710 Short Valve Cylinder Head Shaft Mounted Rocker Arm System, (5.655 Valve Length)
  • Manton Rocker Arms RA LS7-RKR-SYS-INLINE - Engine Rocker Arm Kit

    Manton's LS7 - Rocker Arm System (Inline Bolt Pattern)

    Manton's LS7 - Rocker Arm System (Inline Bolt Pattern)

    • Billet Alloy Steel Rocker Arm Body and Stands

    • Tool Steel Roller & Pin

    • H-13 Adjusting Screw

    • 1.81 Ratio

     SKU: RA LS7-RKR-SYS-INLINE
    $4,450.66 USD

    Manton's LS7 - Rocker Arm System (Inline Bolt Pattern)