[Set components] ・4V Cylinder Head ・4V Forged Pistons ・Piston ring ・Exclusive Intake Manifold ・Special camshaft ・Forged aluminum roller locker arms ・Large capacity injector ・Cylinder ・ENIGMA Fire Plus Stock Type V Stock x 1pc ・Big Throttle Kit
Installation time:4.2h
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.
* The BEST and MUST store to find Japanese parts. * Register now for amazing deals and other special offers! *Over 800,000 listed items. It's hard NOT to find your parts.
SIGN IN TO WEBIKE JAPAN
Please enter email at least 6 characters.
Please enter a valid email address.
Email is already in use.
Your account has been banned.
Email address and/or password is not match.
Authentication with facebook fail.Please try again.
Please select How did you get to know about Webike Japan?
OR
YOUR ACCOUNT HAS BEEN CREATED!
Congratulations! Your new account has been successfully created! You can now take advantage of member privileges to enhance your online
shopping experience with us. If you have ANY questions about the
operation of this online shop, please email Webike through CONTACT US.
A confirmation has been sent to the provided email address. If you
have not received it within the hour, please contact us.
Get on your grid by register your motorcycle! About our "Mybike" service
"Easier to Search Items" It helps you to search items to fit for your motorcycle!
"Get Much Valuable Information" It helps you to get special deals, newly listed items and closeouts about your motorcycle!
"Easy to Register" It requires only your motorcycle manufacturer, model name and model year!