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Yamaha Cylinder Head Components

RIVA Yamaha 1.8L Engine Cover Billet Knob Set

RY19040-KS-RD

These precision machined billet aluminum knobs provide quick and easy access to your engine for maintenance & cleaning. Directly replaces original steel mounting screws securing engine cover that are prone to corrosion. A practical upgrade that installs in minutes and looks awesome! Provides ...

  • $59.95
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    RIVA Yamaha 1.8L Engine Cover Billet Knob Set

  • $59.95
  • RIVA Yamaha 1.8L Engine Cover Billet Knob Set - Blue

    RY19040-KS-BLU

    These precision machined billet aluminum knobs provide quick and easy access to your engine for maintenance & cleaning. Directly replaces original steel mounting screws securing engine cover that are prone to corrosion. A practical upgrade that installs in minutes and looks awesome! Provides ...

  • $59.95
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    RIVA Yamaha 1.8L Engine Cover Billet Knob Set - Blue

  • $59.95
  • RIVA Yamaha 1.8L Billet Engine Oil Filler Cap

    RY19040-OC-RD

    Our Billet Aluminum Engine Oil Filler Cap adds durability and a custom look to your engine compartment. Precision machined from 6061 billet aluminum and anodized for a long lasting and durable finish. Direct replacement for original plastic oil cap on all Yamaha 1.8L HO, SHO & SVHO engines. Includes...

  • $44.95
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    RIVA Yamaha 1.8L Billet Engine Oil Filler Cap

  • $44.95
  • RIVA Yamaha 1.8L Billet Engine Oil Filler Cap - Blue

    RY19040-OC-BLU

    Our Billet Aluminum Engine Oil Filler Cap adds durability and a custom look to your engine compartment. Precision machined from 6061 billet aluminum and anodized for a long lasting and durable finish. Direct replacement for original plastic oil cap on all Yamaha 1.8L HO, SHO & SVHO engines. Includes...

  • $44.95
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    RIVA Yamaha 1.8L Billet Engine Oil Filler Cap - Blue

  • $44.95
  • RIVA Cylinder Head Stud Kit Yamaha 1.8L Engines

    RY10040-HSK

    Our ultra high strength RIVA cylinder head stud kit is essential equipment when upgrading internal components on your high boost Yamaha engine. Precision machined from premium grade 8740 alloy and heat treated to exacting tolerances, these studs dramatically increase reliability & ease of maintenanc...

  • $249.95
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    RIVA Cylinder Head Stud Kit Yamaha 1.8L Engines

  • $249.95
  • RIVA Yamaha SHO/HO Racing Cam Set

    RY19040-BCS-141

    Delivers 20 peak HP and better acceleration. Grind specifications developed on our in-house Dyno and made exclusively for RIVA Racing by Web Cam. Increased material strength for added reliability. Increased lubrication at critical lobe contact area via added oil ports. Bulletproof one?piece moun...

  • $1,509.00
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    RIVA Yamaha SHO/HO Racing Cam Set

  • $1,509.00
  • RIVA Valve Train Upgrade Tool Kit for Yamaha

    RY19040-VCT

    Our overhead Valve Compression Tool allows easy removal of valve springs and keepers without removing cylinder head. Includes compression adapter to pressurize cylinder keeping valves in place during removal of stock springs and keepers. Fits both Yamaha 1.8L & Kawasaki 1.5L 4-stroke engines....

  • $239.95
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    RIVA Valve Train Upgrade Tool Kit for Yamaha

  • $239.95
  • RIVA Yamaha Valve Train Upgrade Kit, 1.8L

    RY19040-VTU-2

    Our Valve Train Upgrade Kits increase the reliability of your modified engine by reducing the possibility of valve float at high rpm. Includes lightweight, precision-machined titanium valve retainers, racing valve springs, and base washers....

  • $649.95
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    RIVA Yamaha Valve Train Upgrade Kit, 1.8L

  • $649.95
  • RIVA Valve Retainers Upgrade Kit Yamaha 1.8L

    RY19040-SRU

    Our Valve Retainer Upgrade Kit increases the reliability of your engine by reducing the possibility of valve float at high rpm. Includes 16 lightweight, precision-machined titanium valve retainers. A must for IJSBA & APBA Stock Class race craft. Note: For modified engines (Stage 3 & above) we rec...

  • $349.95
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    RIVA Valve Retainers Upgrade Kit Yamaha 1.8L

  • $349.95
  • RIVA Yamaha Intake Valve, 1.8L +1mm (single)

    RY19040-IVS-1

    This is a +1mm oversize, single replacement intake valve from the RIVA Performance Valve set. (part# RY19040-HPV-1:1)

  • $33.97
    RY19040-IVS-1.jpg

    RIVA Yamaha Intake Valve, 1.8L +1mm (single)

  • $33.97
  • RIVA Yamaha Performance Valve Set, 1.8L +1mm (over sized)

    RY19040-HPV-1:1

    RIVA High Performance Valves are engineered to improve reliability and performance in high-boost supercharged & turbocharged engines. Intake valves are built from high grade EV-8 (24-4N) stainless that is extremely resistant to corrosion. Exhaust valves are built from inconel alloy (IN-751) that is ...

  • $699.95
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    RIVA Yamaha Performance Valve Set, 1.8L +1mm (over sized)

  • $699.95
  • RIVA Yamaha Performance Valve Set, 1.8L Standard

    RY19040-HPV-0

    RIVA High Performance Valves are engineered to improve reliability and performance in high-boost supercharged & turbocharged engines. Intake valves are built from high grade EV-8 (24-4N) stainless that is extremely resistant to corrosion. Exhaust valves are built from inconel alloy (IN-751) that is ...

  • $649.95
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    RIVA Yamaha Performance Valve Set, 1.8L Standard

  • $649.95
  • RIVA Yamaha 1.8L Engine Performance Valve Lifter Buckets

    RY19040-BVL-KIT

    RIVA Performance Valve Lifter Buckets are a "must have" item when upgrading your engine's valve train. Designed to withstand the stress of increased valve spring tension and RPM in modified engines that can cause stock components to fail. Our lightweight valve lifter buckets are CNC machined from he...

  • $459.95
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    RIVA Yamaha 1.8L Engine Performance Valve Lifter Buckets

  • $459.95
  • RIVA Yamaha 1.8L Engine Performance Valve Seals

    RY19040-PVS-1

    Our high quality viton seals are extremely resistant to heat and abrasion. Metal body holds it's shape under extreme conditions. Spring loaded wipers keep unwanted oil from contaminating combustion chambers and prevent air leakage through valve guides. Precision seal removal & installation tool is a...

  • $59.95
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    RIVA Yamaha 1.8L Engine Performance Valve Seals

  • $59.95
  • Hot Cams Valve Shim Kit 9.48mm

    0925-0011

    Hot Cams shim kits enable you to precisely shim the valve train of your modified Yamaha or Kawasaki 4-stroke engine. Kits include three 9.48mm shims in each size ranging from 1.20 to 3.50 (increments of 0.05). Made from 4140 cold rolled steel....

  • $99.95
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    Hot Cams Valve Shim Kit 9.48mm

  • $99.95