GOOFIT
47mm Completed Cylinder Head Assembly for 4-Stroke 70cc Engine ATV Go Kart Dirt Bike
47mm Completed Cylinder Head Assembly for 4-Stroke 70cc Engine ATV Go Kart Dirt Bike
4.9 / 5.0
(10) 10 total reviews
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Product Overview
Get your vehicle back on the trail quickly with the GOOFIT 47mm Completed Cylinder Head. This is a comprehensive, standard-sized replacement kit designed for most Chinese-made 4-stroke 70cc horizontal engines. Featuring pre-installed intake and exhaust valves, this "replace and ride" assembly eliminates the hassle of complex top-end rebuilds, ensuring a perfect seal and restored engine compression.
Product Compatibility
A universal replacement for 4-stroke 70cc engines found in a wide variety of power sports vehicles.
| Vehicle Type | Common Application | Fitment Note |
| ATVs / Quads | 70cc Youth ATVs | Fits TaoTao, Coolster, Buyang |
| Dirt Bikes | 70cc Pit Bikes | Horizontal Engine Models |
| Go Karts | 70cc Buggies & Karts | Standard Bolt Pattern |
| Mini Bikes | 70cc 4-Stroke Trail Bikes | Direct Bolt-on Fit |
Specifications
| Attribute | Details |
| Cylinder Bore Size | 47mm / 1.85" |
| Intake Valve Length | 45mm / 1.77" |
| Exhaust Valve Length | 44mm / 1.73" |
| Engine Type | 4-Stroke Horizontal |
| Displacement | 70cc |
| Assembly Status | Completed (Valves Pre-installed) |
Key Features
- "Replace and Ride" Simplicity: This complete assembly replaces your existing worn-out cylinder head, allowing for a fast and straightforward installation without the need for specialized valve-spring tools.
- Standard-Sized Precision: Precision-engineered to 47mm bore specifications, ensuring perfect compatibility with standard 70cc pistons and gaskets.
- Pre-Installed Valve Train: Comes fully equipped with 45mm intake and 44mm exhaust valves, precision-seated to provide maximum compression and prevent power loss.
- High-Grade Material: Manufactured from premium aluminum alloy for excellent thermal conductivity, keeping your 4-stroke engine running cool under heavy loads.
- Broad Compatibility: Designed to fit the vast majority of Chinese 70cc engines, making it the ideal choice for TaoTao, Coolster, Roketa, and more.
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Fitment FAQ
Will this part fit my specific model and year?
This cylinder piston kit is intended for A universal replacement for 4-stroke 70cc engines found in a wide variety of power sports vehicles.; Vehicle Type; Common Application. Key physical/spec details from the product data include Cylinder Bore Size: 47mm / 1.85", Intake Valve Length: 45mm / 1.77", Exhaust Valve Length: 44mm / 1.73". 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 cylinder piston kit, also compare the bore diameter, piston-pin size, gasket pattern, stud spacing, engine code, stroke type, and cylinder height.
What models or situations does this part not fit?
Do not order this cylinder piston kit for machines outside the listed compatibility, or for units with different bore sizes, piston-pin diameters, stroke lengths, stud spacing, or gasket patterns. 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 bore diameter, piston-pin size, gasket pattern, stud spacing, engine code, stroke type, and cylinder height. Recheck listed specs such as Cylinder Bore Size: 47mm / 1.85", Intake Valve Length: 45mm / 1.77", Exhaust Valve Length: 44mm / 1.73". If any connector, mounting point, size, or year detail is different, confirm fitment before installation.
Make sure you adjust the valve. They be hit or miss but I got the bike running.When I get an rebuild kit I also get an new carb
Easy install. The only thing is don’t try prying off chrome cap. It has a Bolt on the other side of the head and it comes right off.
Fits and works just fine for my ssr 70cc pit bike
Works great so far !
It was great and fit well