* About quality and texture, A very inclusive big bore kit here from Endurance. For me the parts that highlight the quality of the big bore kit are the forged aluminium piston, the forged aluminium roller rocker arms and the all aluminium cylinder with ceramic coated paint finish.* About the feeling of use, The peak power that this big bore kit can output is very impressive from what was once a 125cc motorcycle but the power below 6000 rpm is not as impressive as I would have liked.* Products to buy together, Due to the very high rpms this big bore kit can achieve and where you will be riding most of the time to see those high power levels you definitely need to also purchase a reinforced crankshaft from Kitaco.* Difficulty of installation, The installation of the big bore kit requires striping down the complete top end, gapping the rings and replacing the cylinder and head followed by valve adjustments. The process was completed in 120 minutes with a little difficultly.* Cost performance and comparison with other products, When you see the parts list of all that is included and the horsepower this big bore kit can output I consider it good value for money and much cheaper if you are to compare it to the Takegawa 181cc 4V big bore kit.* About shipping and packaging, I am happy to wait 8 weeks on average for my parts to arrive in Sydney Australia via Webike's sea freight which comes with tracking and insurance so I know I'm covered in case something was to go wrong but with there outstanding bubble wrapping and boxing there have been no problems.* Any concerns, cautions, or advice when purchasing, If your riding style leans toward low RPM power then this is not the big bore kit for you and you should research the Kitaco Neo 164cc and 181cc big bore kits. Use the product reviews to assist in making a decision on your purchase.
View Detail
774.01 USD (117,614 JPY)
Delivery Information
Out of stock at the manufacturer.
Product detail
[Set components]
・4V Cylinder Head
・4V Forged Pistons
・Piston ring
・Exclusive Intake Manifold
・Special camshaft
・Forged aluminum roller locker arms
・Large capacity injector
Installation time:2.0h
* Damage to the parts due to technical or knowledge problems may lead to injury or death due to a fall.
*When installing this product, be sure to install the Enigma Fire Plus.If you do not install it, you will not get enough fuel and you will not be able to get the best performance out of your vehicle.In the worst case, the engine may be damaged.Conventional F.I.B PRO cannot be used.
*This product is exclusive for Endurance 170CC Big Bore Kit..
The head is of course, a 1 camdhaft for 4 valve.
Here's the answer to durability and high output!
Endurance hi-POWER 4Valve Head Kit!
[Features]
1: 4-valve head
The intake air volume is increased by more than 50% compared to stock by changing to 4 valves!
Spark flag is in the center.
The shape of the combustion chamber and the intake and exhaust ports have been optimized, resulting in a significant increase in power output.
Stock part is IN: Φ25.5, EX: Φ21 for one each, lN: Φ24 x 2 bottles, EX: Φ21 x 2 bottles.
In addition, the stem shaft diameter is Φ4.5 (stock: Φ5).
2: Intake port
・The oval intake port has been redesigned and optimized for 4-valve use!
・The intake manifold is also specially designed to fit the oval shape for smooth air intake!
3: Dedicated manifold
・An oval shaped manifold is installed to match the intake port.This is only for Big Throttle Kit.
4: Large capacity injector
・Increased output by 4V head!
・The injectors were enlarged to match the intake air volume!
・Dedicated MAP is built into Enigma Endurance specification (sold separately).
5: Aluminum casting biston
Specially designed pistons for the 4V.The high compression ratio of 12.5 is achieved by combining lightness and strength.
Lightweight and strong enough to withstand the high power output of 4V pistons can only be achieved with cast pistons.
By adopting a special casting material, it succeeded in getting strength and lightness that cannot be achieved by a general casting material machining method, and in significantly reducing the weight error.
It is easy to see which is more suitable for tuning engines: cast pistons, which give the highest priority to productivity (cost), or forged pistons, which give the highest priority to strength.
6: Riken Piston Rings
The piston ring is made by Riken.
7: Cast aluminum roller rocker arm
・The rocker arm is made of cast aluminum to achieve both lightness and strength!
・The roller rocker arm reduces the frictional resistance with the camshaft and increases the power output!
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
MODEL PAGE LINKS
NEW ARRIVALS IN USED PARTS FOR
NEW ARRIVALS IN USED PARTS FOR
NEW ARRIVALS IN USED PARTS FOR
New arrivals in used
New arrivals in used
Customer Reviews
Reviews with image
Fits:HONDA GROM 16-21
Installed on: HONDA MSX125 (GROM)
New Custom Articles
