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【METAL HEAD GASKET】
The Performance requirement from Head Gasket.
As the cylinder block and head are not rigid body, when the Head Bolts are tightened, the gap between the surfaces and the surface pressure applied is not even across the whole surface. Moreover, due to combustion pressure and vibration while driving, the conditions are continually changing and the contact surface is being continually beaten. As a result, a good gasket must ensure that contact surface pressure is spread as evenly as possible and also adapt quickly to the ever changing gaps that can appear in the contact surface to maintain a good seal with good pressure.
* Compression ratio is for reference when using a stock cylinder head with stock pistons.
METAL HEAD GASKET
GROMMET TYPE HEAD GASKET
FA20 engine tuning through turbo and supercharging is becoming more and more popular. In these cases, many people will eventually experience the issue of head gasket failure.
To address this, HKS is pleased to announce the release of a new grommet type head gasket which takes things a step further than the existing stopper type gaskets.
STOPPER TYPE HEAD GASKET
A high pressure seal is formed around the combustion chamber through the use of stoppers which create a step within the gasket for optimum sealing. By making the stopper part of the plate also allows the fold to be smaller while maintaining structural integrity. One side of the plate is completely flat meaning that it can be layered with the stopper to allow stoppers to be used in even the tightest of locations around the combustion chamber forming a high quality seal. Compared with other gaskets of the same thickness, there are more layers in these gaskets giving flexibility which allows the gasket to maintain a good seal even when the engine tries to vibrate and move.
Opposed Bead Stopper Type
If you don't have to worry about the distortion, you can use this to improve the sealing. This type is much better than bead type in matter of sealing. Opposed bead stopper type provide more balance in surface pressure.
Independent warter hole type
Water holes and Head Bolt holes have "independent bead" that is the mainstream technology in motor racing. It reduces possibility of overheating even combustion gas leakage due to high horsepower. Because of the new design of bead shape around Head Bolt hole and water hole, crack around Head Bolt hole will be prevented.
BEAD TYPE HEAD GASKET
A bead is a type of spring used to maintain surface pressure which is very well suited to head gasket use. The beads are laid out to provide optimum pressure and seal around the combustion chamber. By carefully designing and adjusting the bead shape and heights, precise control of surface pressure is achieved for optimum results. Using a combination of 3 different types of beads allows maximum efficiency and performance.
METAL HEAD GASKET KIT
This kit includes: Head Gasket, exhaust manifold, throttle and intake manifold gaskets.
GROMMET TYPE HEAD GASKET KIT
HKS Drag Metal Head Gasket Kit utilized and designed specifically for drag racing engines. The durability is enhanced to handle the boost pressure up to 200kPa (2kg/cm2) maintaining the surface pressure and preventing gas leakage. This is a grommet-type gasket.
STOPPER TYPE HEAD GASKET KIT
Gaskets are included for stopper type head gasket and etc., ehxhaust minifold, throttle and intake manifold.
* Only EX gasket included for VR38DETT, LEA-L15
HEAD GASKET KIT ENGINE OVERHAUL
A convenient metal head gasket kit including necessary parts for an engine overhaul.
- HKS Head Gasket
(Select one from the below 4 options) x 1pc- Stopper-type t=1.2
- Stopper-type t=1.6
- Stopper-type t=1.2
- Stopper-type t=1.6
- HKS Metal Throttle Body Gasket x 6pcs
- HKS Metal Intake Manifold Gasket x 1pc
- HKS Metal Exhaust Manifold Gasket x 2pcs
- HKS Valve Stem Seal IN / EX x 12 pcs each
- Rocker Cover Gasket IN / EX x 1 pc each
- Aluminum Plug x 2 pcs
- Washer for Cylinder Cover x 20 pcs
- Oil Seal for Camshaft x 2 pcs
- Oil Seal for Crankshaft Small / Large x 1 pc each
- Gasket for Oil Strainer x 1 pc
- O-ring for Oil Strainer (old type) x 1 pc
- O-ring for Oil Cooler x 1 pc
- O-ring for Crank Angle Sensor x 1 pc
- Gasket for Oil Pump x 1 pc
- Gasket for Oil Filter x 1 pc
- Gasket for Oil Outlet Flange x 1 pc
- Includes HKS metal head gasket and gaskets that are required for RB26DETT engine overhaul.
- By using this kit, you can avoid the hassle of arranging the OEM parts individually.
- Specifically selected necessary parts are included in the kit and eliminated the unnecessary parts included in the OEM overhaul kit.
- Highly durable fluorine rubber O-rings manufactured by NOK CORPORATION.
INTAKE & EXHAUST GASKET
Intake & Exhaust Gaskets for RB26 are now available separately.
●Throttle body Gasket, Intake Manifold Gasket
- HKS changed the gasket material from paper to metal with NBR coating on a side of cold-rolled steel sheet. These won't stick like the stock ones when replacing the intake manifold.
- Metal+Bead type. Ensure the sealing performance at high temperature and high boost.
- Metal material keeps rigidity of surrounding intake air parts even after changing or replacing surge tanks etc.
- Engraved with HKS logo.
●Exhaust Manifold Gasket
- Adopting 4 layers of metal structure (t=0.8mm, SUS) won't stick like the stock one when replacing the exhaust manifold.
- Heat treated to improved heat deformation resistance.
- Metal material keeps the rigidity of surrounding exhaust parts even after changing or replacing exhaust manifold etc.
- Engraved with HKS logo.