Marine Valvetrain Parts
- COMP Cams®Camshaft for ChevroletCamshaft for Chevrolet Engines by COMP Cams®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all marine applications. It will...Xtreme Marine CamshaftHigh quality at an affordable price$269.95 - $505.95
- COMP Cams®Xtreme Marine Camshaft for ChevroletXtreme Marine Camshaft for Chevrolet Engines by COMP Cams®. Xtreme Marine™ -Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine...Engineered to high standardsHigh-grade design delivers extended lifespan$217.95 - $522.95
- COMP Cams®Camshaft (11-702-9)Camshaft (11-702-9) by COMP Cams®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all marine applications. It will satisfy the...Xtreme Marine CamshaftMechanical roller:-Use in 454 c.i. or larger engines. 11.5:1 compression$505.95
- COMP Cams®Xtreme Marine Camshaft (12-417-8)Xtreme Marine Camshaft (12-417-8) by COMP Cams®. Xtreme Marine™ -Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine vacuum and...Largest for inboard/outboardGood mid-range with excellent response$522.95
- COMP Cams®Xtreme Marine Camshaft (11-456-8)Xtreme Marine Camshaft (11-456-8) by COMP Cams®. Xtreme Marine™ -Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine vacuum and...Xtreme Marine CamshaftHydraulic roller: Good for jet boat with A or B impeller with 10:1 compression running river drags or bracket racing.$522.95
- COMP Cams®Xtreme Marine Camshaft (11-445-8)Xtreme Marine Camshaft (11-445-8) by COMP Cams®. Xtreme Marine™ -Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine vacuum and...Xtreme Marine CamshaftHydraulic roller: Good for inboard/outboard pleasure boats$522.95
- COMP Cams®Xtreme Marine Camshaft (08-418-8)Xtreme Marine Camshaft (08-418-8) by COMP Cams®. Xtreme Marine™ -Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine vacuum and...Xtreme Marine CamshaftHydraulic roller: Good for jet boat with A or B impeller, strong mid-range power, needs good exhaust.$522.95
- COMP Cams®Xtreme Marine Camshaft (08-416-8)Xtreme Marine Camshaft (08-416-8) by COMP Cams®. Xtreme Marine™ -Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine vacuum and...Xtreme Marine™ Cams: Extremely wide powerband helps get boat on plane while making maximum horsepowerWork against exhaust systems w/ restrictive back pressure$522.95
- COMP Cams®Camshaft/Lifter Kit for ChevroletCamshaft/Lifter Kit for Chevrolet Engines by COMP Cams®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all marine applications....Camshaft And Lifter KitHigh quality at an affordable price$372.95 - $1,036.95
- QualCast®Q Series Valve Seat Insert for GMQ Series Valve Seat Insert for GM Engines by QualCast®. The 4-digit part number is the cutter size. Actual O.D. of the seat is increased by the press fit for cast iron heads - between 0.0045 and 0.006 inches. QualCast high-chrome alloy...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$6.81
- COMP Cams®Xtreme Marine Camshaft Kit for FordXtreme Marine Camshaft Kit for Ford Engines by COMP Cams®. Xtreme Marine™ -Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine...Expertly crafted from premium materialsDesigned to match rigorous quality standards$616.95 - $778.95
- COMP Cams®Magnum Marine Camshaft Kit for ChevroletMagnum Marine Camshaft Kit for Chevrolet Engines by COMP Cams®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all marine...Engineered to high standardsHigh-grade design delivers extended lifespan$722.95 - $780.95
- COMP Cams®Xtreme Marine Camshaft/Lifter Kit for ChevroletXtreme Marine Camshaft/Lifter Kit for Chevrolet Engines by COMP Cams®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...Engineered to high standardsHigh-grade design delivers extended lifespan$325.95 - $1,097.95
- COMP Cams®Xtreme Marine Camshaft for FordXtreme Marine Camshaft for Ford Engines by COMP Cams®. Xtreme Marine™ -Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine...Expertly crafted from premium materialsDesigned to match rigorous quality standards$267.95 - $314.95
- COMP Cams®Camshaft Kit for ChevroletCamshaft Kit for Chevrolet Engines by COMP Cams®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all marine applications. It...Complete Camshaft KitHigh quality at an affordable price$674.95 - $2,009.95
- COMP Cams®Magnum Marine Camshaft/Lifter/Timing Kit for ChevroletMagnum Marine Camshaft/Lifter/Timing Kit for Chevrolet Engines by COMP Cams®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all...Engineered to high standardsHigh-grade design delivers extended lifespan$435.95 - $510.95
- COMP Cams®Magnum Marine Camshaft for ChevroletMagnum Marine Camshaft for Chevrolet Engines by COMP Cams®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all marine...Xtreme Marine CamshaftHigh quality at an affordable price$314.95 - $324.95
- QualCast®Valve Stem Seal for MercuryValve Stem Seal for Mercury Engines by QualCast®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$3.34
- COMP Cams®Camshaft for FordCamshaft for Ford Engines by COMP Cams®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all marine applications. It will satisfy...Xtreme Marine CamshaftHigh quality at an affordable price$282.95 - $505.95
- COMP Cams®Camshaft/Lifter/Timing Kit for ChevroletCamshaft/Lifter/Timing Kit for Chevrolet Engines by COMP Cams®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all marine...Small Camshaft KitHigh quality at an affordable price$464.95 - $1,236.95
- COMP Cams®Magnum Marine Camshaft/Lifter Kit for ChevroletMagnum Marine Camshaft/Lifter Kit for Chevrolet Engines by COMP Cams®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all marine...Engineered to high standardsHigh-grade design delivers extended lifespan$420.95 - $437.95
- COMP Cams®Xtreme Marine Camshaft Kit for ChevroletXtreme Marine Camshaft Kit for Chevrolet Engines by COMP Cams®. Xtreme Marine™ -Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases...Engineered to high standardsHigh-grade design delivers extended lifespan$500.95 - $1,567.95
- COMP Cams®Xtreme Marine Camshaft/Lifter Kit for FordXtreme Marine Camshaft/Lifter Kit for Ford Engines by COMP Cams®. Xtreme Marine™ -Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases...Expertly crafted from premium materialsDesigned to match rigorous quality standards$338.95 - $413.95
- COMP Cams®Xtreme Marine Camshaft/Lifter/Timing Kit for ChevroletXtreme Marine Camshaft/Lifter/Timing Kit for Chevrolet Engines by COMP Cams®. Xtreme Marine™ -Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve...Engineered to high standardsHigh-grade design delivers extended lifespan$418.95 - $1,186.95
- QualCast®N Series Valve Seat Insert for GMN Series Valve Seat Insert for GM Engines by QualCast®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by QualCast will...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$7.28 - $11.07
- QualCast®N Series Valve Seat Insert for MercuryN Series Valve Seat Insert for Mercury Engines by QualCast®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by QualCast...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$7.28 - $11.07
- QualCast®Q Series Valve Seat Insert for ChryslerQ Series Valve Seat Insert for Chrysler Engines by QualCast®. The 4-digit part number is the cutter size. Actual O.D. of the seat is increased by the press fit for cast iron heads - between 0.0045 and 0.006 inches. QualCast high-chrome...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$3.07 - $6.83
- QualCast®Q Series Valve Seat Insert for MercuryQ Series Valve Seat Insert for Mercury Engines by QualCast®. The 4-digit part number is the cutter size. Actual O.D. of the seat is increased by the press fit for cast iron heads - between 0.0045 and 0.006 inches. QualCast high-chrome...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$6.81
- QualCast®Valve Stem Seal for GMValve Stem Seal for GM Engines by QualCast®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$3.34
- QualCast®Valve Stem Seal for OMCValve Stem Seal for OMC Engines by QualCast®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$3.34
The valvetrain systems installed in four-stroke marine engines and their automotive counterparts have much in common. Like a car motor, the inboard or outboard engine may have a SOHC, DOHC, or OHV configuration, depending on the construction of the cylinder head. In the first and second variants, one or two camshafts are installed above the valves and are driven by the crankshaft via the timing belt or chain. In most cases, the chain is considered more reliable and durable; it can be virtually maintenance-free, given that motor oil responsible for lubing this crucial mechanism changes regularly.
However, everything may happen, and if bad lubrication or too many workhours is the reason, chances are high that in addition to a chain, you will also need a camshaft, sprockets, tensioner, and some other parts required for engine rebuild. In our online store, you will find a large assortment of marine valvetrain parts designed for various engine makes and models and available in kits or individually. Many kits also include valve lifters that can be of flat tappet or roller type, hydraulic or mechanical. All of them are sourced from reputable brands standing behind their products.