The HKS metal head gaskets are constructed from multiple layers of steel to ensure proper head to block sealing under the most demanding high performance conditions.
In the construction of each HKS head gasket, a special metal which is extremely resistant to the severe levels of both heat and corrosion, that is attributed with high-horsepower and high-boost conditions, is used to ensure gasket integrity. Aside from the durable internal construction, all HKS head gaskets are also coated with a special fluorine rubber coating to provide the ultimate sealing. HKS head gaskets are designed to accommodate for oversize pistons and altered compression ratios. For certain applications, multiple gasket thicknesses are available to change the dynamic compression ratio according to the needs and characteristics of the various levels tuning and engine conditions. HKS gaskets are not designed to cure sealing problems caused by head or block irregularities.
Features
This HKS Stopper type is highly effective in sealing because it incorporates a stopper instead of a grommet or bead which can become weak over a period of time. The stopper type consists of the most number of layers of plates for a better seal. The better seal is caused by the stopper on top of the bead or grommet. The increased sealing capability is also due to a molded stopper ring around each combustion chamber. This stopper type is the most expensive of the three types of metal head gaskets.
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| Vehicle | Thickness | Bore | Price | Order | |
|---|---|---|---|---|---|
| 2301-RN039 In stock at HKS | |||||
| 180SX - RS13 SR20DET | 1.2 mm | 88.0 mm | | | |
| 23001-AN001 Limited stock at HKS | |||||
| 180SX - RS13 SR20DET | 1.6 mm | 88.0 mm | | ||
| 23001-AN002 In stock at HKS | |||||
| Fairlady Z - 350Z - Z33 VQ35DE | 0.7 mm | 97.0 mm | | | |
| 2301-RN039 In stock at HKS | |||||
| Silvia - S13 SR20DET | 1.2 mm | 88.0 mm | | | |
| 23001-AN001 Limited stock at HKS | |||||
| Silvia - S13 SR20DET | 1.6 mm | 88.0 mm | | ||
| 2301-RN039 In stock at HKS | |||||
| Silvia - S14 SR20DET | 1.2 mm | 88.0 mm | | | |
| 23001-AN001 Limited stock at HKS | |||||
| Silvia - S14 SR20DET | 1.6 mm | 88.0 mm | | ||
| 2301-RN039 In stock at HKS | |||||
| Silvia - S15 SR20DET | 1.2 mm | 88.0 mm | | | |
| 23001-AN001 Limited stock at HKS | |||||
| Silvia - S15 SR20DET | 1.6 mm | 88.0 mm | | ||
| Vehicle | Thickness | Bore | Price | Order | |
|---|---|---|---|---|---|
| 2301-RT037 In stock at HKS | |||||
| 1JZ-G(T)E | 1.6 mm | 88.0 mm | | | |
| 2301-RT041 In stock at HKS | |||||
| 2JZ-G(T)E | 1.2 mm | 88.0 mm | | | |
| 2301-RT042 In stock at HKS | |||||
| 2JZ-G(T)E | 1.6 mm | 88.0 mm | | ||
| 2301-RT043 In stock at HKS | |||||
| 2JZ-G(T)E | 2.0 mm | 88.0 mm | | | |
| 2301-RT041 In stock at HKS | |||||
| 2JZ-GTE (VVTi) | 1.2 mm | 88.0 mm | | | |
| 2301-RT042 In stock at HKS | |||||
| 2JZ-GTE (VVTi) | 1.6 mm | 88.0 mm | | ||
| 2301-RT043 In stock at HKS | |||||
| 2JZ-GTE (VVTi) | 2.0 mm | 88.0 mm | | | |
| 2301-RT044 In stock at HKS | |||||
| 3S-GTE 10/1993+ VVT-i traverse | 1.2 mm | 88.0 mm | | | |
| 2301-RT045 In stock at HKS | |||||
| 3S-GTE 10/1993+ VVT-i traverse | 1.6 mm | 88.0 mm | | | |
| 2301-RT035 In stock at HKS | |||||
| 3S-GTE before 10/1993 horizontal | 1.6 mm | 87.5 mm | | ||
| 2301-RT032 In stock at HKS | |||||
| 7M-GTE | 2.0 mm | 86.0 mm | | | |
| 23001-AT002 In stock at HKS | |||||
| 86 - ZN6 | 0.5 mm | 89.5 mm | | | |
| 23001-AT003 In stock at HKS | |||||
| 86 - ZN6 | 0.7 mm | 89.5 mm | | | |
| 23001-AT004 In stock at HKS | |||||
| 86 - ZN6 | 1.0 mm | 89.5 mm | | | |
| Vehicle | Thickness | Bore | Price | Order |
|---|---|---|---|---|
| 2301-RM006 In stock at HKS | ||||
| Galant VR-4 - E39A | 1.2 mm | 86.0 mm | | |
| 2301-RM007 Limited stock at HKS | ||||
| Galant VR-4 - E39A | 1.6 mm | 86.0 mm | | |
| 2301-RM006 In stock at HKS | ||||
| Lancer Evolution - CD9A | 1.2 mm | 86.0 mm | | |
| 2301-RM007 Limited stock at HKS | ||||
| Lancer Evolution - CD9A | 1.6 mm | 86.0 mm | | |
| 2301-RM006 In stock at HKS | ||||
| Lancer Evolution II - CE9A | 1.2 mm | 86.0 mm | | |
| 2301-RM007 Limited stock at HKS | ||||
| Lancer Evolution II - CE9A | 1.6 mm | 86.0 mm | | |
| 23001-AM003 In stock at HKS | ||||
| Lancer Evolution IV - CN9A | 1.0 mm | 86.0 mm | | |
| 23001-AM004 In stock at HKS | ||||
| Lancer Evolution IV - CN9A | 1.2 mm | 86.0 mm | | |
| 23001-AM005 In stock at HKS | ||||
| Lancer Evolution IV - CN9A | 1.6 mm | 86.0 mm | | |
| 23001-AM003 In stock at HKS | ||||
| Lancer Evolution IX - CT9A | 1.0 mm | 86.0 mm | | |
| 23001-AM004 In stock at HKS | ||||
| Lancer Evolution IX - CT9A | 1.2 mm | 86.0 mm | | |
| 23001-AM005 In stock at HKS | ||||
| Lancer Evolution IX - CT9A | 1.6 mm | 86.0 mm | | |
| 23001-AM003 In stock at HKS | ||||
| Lancer Evolution V - CP9A | 1.0 mm | 86.0 mm | | |
| 23001-AM004 In stock at HKS | ||||
| Lancer Evolution V - CP9A | 1.2 mm | 86.0 mm | | |
| 23001-AM005 In stock at HKS | ||||
| Lancer Evolution V - CP9A | 1.6 mm | 86.0 mm | | |
| 23001-AM003 In stock at HKS | ||||
| Lancer Evolution VI - CP9A | 1.0 mm | 86.0 mm | | |
| 23001-AM004 In stock at HKS | ||||
| Lancer Evolution VI - CP9A | 1.2 mm | 86.0 mm | | |
| 23001-AM005 In stock at HKS | ||||
| Lancer Evolution VI - CP9A | 1.6 mm | 86.0 mm | | |
| 23001-AM003 In stock at HKS | ||||
| Lancer Evolution VII - CT9A | 1.0 mm | 86.0 mm | | |
| 23001-AM004 In stock at HKS | ||||
| Lancer Evolution VII - CT9A | 1.2 mm | 86.0 mm | | |
| 23001-AM005 In stock at HKS | ||||
| Lancer Evolution VII - CT9A | 1.6 mm | 86.0 mm | | |
| 23001-AM003 In stock at HKS | ||||
| Lancer Evolution VIII - CT9A | 1.0 mm | 86.0 mm | | |
| 23001-AM004 In stock at HKS | ||||
| Lancer Evolution VIII - CT9A | 1.2 mm | 86.0 mm | | |
| 23001-AM005 In stock at HKS | ||||
| Lancer Evolution VIII - CT9A | 1.6 mm | 86.0 mm | | |
| 23001-AM006 In stock at HKS | ||||
| Lancer Evolution X - CZ4A | 1.0 mm | 87.5 mm | | |
| 23001-AM007 Limited stock at HKS | ||||
| Lancer Evolution X - CZ4A | 1.0 mm | 87.5 mm | | |
| 23001-AM008 | ||||
| Lancer Evolution X - CZ4A | 1.0 mm | 87.5 mm | | |
| Vehicle | Thickness | Bore | Price | Order |
|---|---|---|---|---|
| 23001-AT002 In stock at HKS | ||||
| BRZ - ZC6 | 0.5 mm | 89.5 mm | | |
| 23001-AT003 In stock at HKS | ||||
| BRZ - ZC6 | 0.7 mm | 89.5 mm | | |
| 23001-AT004 In stock at HKS | ||||
| BRZ - ZC6 | 1.0 mm | 89.5 mm | | |
| Thickness | Bore | Price | Order |
|---|---|---|---|
| 2301-RN033 | |||
| 1.6 mm | 88.0 mm | DISCONTINUED This part is no longer available | |
HKS was founded in October 1973 by Hiroyuki Hasegawa, a former Yamaha engineer, and Goichi Kitagawa, with start-up capital from Sigma Automotive; the name comes from Hasegawa, Kitagawa and Sigma. It began in a small shed at the foot of Mount Fuji, in Fujinomiya, Shizuoka, and is still based there.
In 1974 HKS built one of the first bolt-on turbo kits, for the Nissan L20 engine in the Skyline, raising output from 115 to 160 PS. Turbocharging made its name; today it also makes exhausts, springs, shocks and coilover suspension, and it marked its 50th anniversary in 2023.









