GOOFIT
Engine Rocker Arms & Camshaft Holder Assembly (58mm) for GY6 180cc-250cc
Engine Rocker Arms & Camshaft Holder Assembly (58mm) for GY6 180cc-250cc
Couldn't load pickup availability
Product Overview
Upgrade or restore your high-displacement engine with this professional 58mm Camshaft Holder and Rocker Arm Assembly. Specifically engineered for GY6 180cc, 200cc, and 250cc 4-stroke engines, this heavy-duty component ensures perfect valvetrain alignment. By maintaining precise valve timing and reducing mechanical lash, it maximizes power output and efficiency for your scooter, ATV, or go-kart.
Product Compatibility
Optimized for "Big Block" GY6 engines and engines equipped with big-bore performance heads.
| Vehicle Type | Common Compatible Models |
| Scooter / Moped | Upgraded 180cc-250cc Street Scooters, Jonway, Roketa |
| ATV / Go Kart | Hammerhead, TrailMaster, TrailMaster (High Displacement Models) |
| Engine Series | GY6 180cc / 200cc / 250cc (Modified QMI152 / QMJ157) |
| Fitment Note | 58mm Stud Spacing ONLY. Does not fit standard 54mm GY6 150cc engines. |
Specifications
| Component | Metric Measurement | Imperial Measurement |
| Installation Hole Distance | 58mm | 2.28" |
| Hole Diameter | 8mm | 0.31" |
| Engine Displacement | 180cc / 200cc / 250cc | -- |
| Engine Cycle | 4-Stroke | -- |
| Material | Heat-Treated High-Strength Steel | -- |
Key Features
- Heavy-Duty Casting: Manufactured using precision casting technology and high-strength steel to maintain stability under extreme temperatures and combustion pressures.
- Precision Valvetrain Alignment: Ensures accurate valve opening and closing times, effectively reducing valve lash and engine noise for a smoother ride.
- Heat-Treated Durability: All steel components undergo a specialized heat-treatment process to enhance surface hardness, ensuring maximum wear resistance and an extended service life.
- Enhanced Power & Efficiency: By optimizing valvetrain geometry, this assembly improves intake/exhaust flow, which boosts power output while refining fuel economy.
- Strict Quality Control: Every component is rigorously tested to meet or exceed OEM performance standards, providing peace of mind for high-load applications.
Share
Fitment FAQ
Will this part fit my specific model and year?
This rocker arm cam support is intended for Optimized for "Big Block" GY6 engines and engines equipped with big-bore performance heads.; Vehicle Type; Common Compatible Models; Scooter / Moped; Upgraded 180cc-250cc Street Scooters, Jonway, Roketa; ATV / Go Kart; Hammerhead, TrailMaster, TrailMaster (High Displacement Models). Key physical/spec details from the product data include Optimized for "Big Block" GY6 engines and engines equipped with big-bore performance heads., 58mm Stud Spacing ONLY. Does not fit standard 54mm GY6 150cc engines., Installation Hole Distance: 58mm. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. If your original part has a stamped OEM or manufacturer number, match that number first before ordering. For this rocker arm cam support, also compare the engine code, camshaft support shape, rocker arm size, valve-train layout, and mounting holes. This is especially important for GY6/Roketa GY6 models because similar model names can use different parts by year or trim.
What models or situations does this part not fit?
Do not order this rocker arm cam support for machines outside the listed compatibility, or for units with different engine codes, valve-train layouts, cam support shapes, or oil-passage locations. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the engine code, camshaft support shape, rocker arm size, valve-train layout, and mounting holes. Recheck listed specs such as Optimized for "Big Block" GY6 engines and engines equipped with big-bore performance heads., 58mm Stud Spacing ONLY. Does not fit standard 54mm GY6 150cc engines., Installation Hole Distance: 58mm. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.