52.4mm Cylinder Head Assembly with Sleeve Plug & Spark Plug for 4-Stroke 110cc Horizontal Engine ATV Dirt Bike

Product Overview

Restore the factory-fresh compression and efficiency of your 110cc engine with the GOOFIT Professional Cylinder Head Rebuild Kit. This assembly is specifically engineered for 4-stroke Chinese horizontal engines, providing a precision-matched 52.4mm bore for leak-free sealing. With optimized air passage design and a complete set of mounting hardware—including sleeve plugs and gaskets—this kit is built to enhance throttle response and fuel economy for your ATV, Dirt Bike, or Go-Kart.

Product Compatibility

Direct replacement for 4-stroke 110cc Horizontal Engines found in most Chinese powersports brands.

Vehicle Type	Application	Fitment Detail
ATVs / Quads	110cc Youth Models	TaoTao, Coolster, Mountopz
Dirt Bikes	110cc Pit Bikes	Standard Horizontal Layout
Go Karts	110cc Off-road Karts	52.4mm Bore
Scooters	110cc 4-Stroke Mopeds	Standard 48x50mm Spacing

Specifications

Attribute	Details
Cylinder Bore	52.4mm / 2.06"
Bolt Hole Spacing	48mm x 50mm (1.89" x 1.97")
Intake/Exhaust Distance	45mm / 1.77" (Center-to-Center)
Engine Type	4-Stroke Horizontal 110cc
Package Includes	Cylinder Head, Sleeve Plug, Spark Plug, Upper/Lower Gaskets

Key Features

• Precision Leak-Free Sealing: The 52.4mm head diameter is meticulously machined to match target specifications, ensuring a perfect airtight seal and maximum combustion efficiency.
• Complete Hardware Bundle: Uniquely equipped with Sleeve Plugs and a fresh spark plug, ensuring a more stable combustion chamber structure and easier installation compared to bare head kits.
• Optimized Airflow Design: Re-engineered intake and exhaust passages improve the scavenging process, leading to increased power output and faster vehicle responsiveness.
• Enhanced Fuel Economy: The refined combustion chamber shape ensures a more complete fuel burn, lowering consumption while maintaining high torque for off-road conditions.
• Durable Alloy Construction: Built from high-strength materials designed to withstand the thermal stress of daily use, ensuring a long service life and reliable performance.