Tomei Oversized Valves 4G63 - RHDJapan

Tomei Oversized Valves 4G63

45899 JPY
TOMEI SKU: 60374 PN: 163402
Images used may be generic. Actual product may vary.

List Price: ¥53,680

Sale Price: ¥45,899

You Save: ¥7,781

The TOMEI Oversized Valves 4G63 are essential to keeping a high powered Engine reliable. They are forged from high quality SUH35 metal on the Intake side and Inconel 751 metal on the Exhaust side to deliver long life and prevent extreme wear and tear.
Included are all needed valves to complete the engine.

Upon purchasing please state the car from the compatibility list that you would like to have the TOMEI Oversized Valves for.

Get this and all your JDM at RHDJapan!!
Brand: Tomei
Product: Oversized Valves 4G63
Part Num: 163402

- 1mm oversized valves were designed for increased flow efficiency on both the intake and exhaust side. The stem has a thinner design for maximizing air flow rate within the port with the reduced air flow resistance. This design with the materials used also allowed for a lighter product as well.

- To maximize the potential of the valves purpose each factor was addressed during the design process from the surface of the valve head (umbrella section) & the Valve Seat, from Stem to Cotter are all optimized with precision for optimum operating & sealing capabilities when needed most during extreme conditions.

- Improved Wear Rate
- Improved Fatigue Rate
- Improved heat resistance
- Improved corrosion resistance

- The SUH35 material which is known for it's high heat resistance properties are usually used for the exhaust side. We chose to use it for the Intake side to suit the the demands of today's users for big power applications and for increased life.

- Since the exhaust side can experience extreme exhaust gas temperatures of 1, 000 degrees C (1, 832 degrees F) during high power use the Inconel 751 material was no doubt the best option to choose to suit serious needs when every detail counts.

Valve Diameter (mm):
- Intake: 35.00
- Exhaust: 31.50

Stem Diameter (mm):
- Intake: 6.57
- Exhaust: 6.54

Stem Length (mm):
- Intake: 109.6
- Exhaust: 109.6

- Sheet Cut is Required

- Only for Lancer Evolution IV~IX

Mitsubishi Lancer Evolution IV CN9A 4G63 (08/1996-12/1997)
Mitsubishi Lancer Evolution IX CT9A 4G63 (03/2005-03/2007)
Mitsubishi Lancer Evolution V CP9A 4G63 (01/1998-12/1998)
Mitsubishi Lancer Evolution VI CP9A 4G63 (01/1999-11/1999)
Mitsubishi Lancer Evolution VII CT9A 4G63 (02/2001-12/2002)
Mitsubishi Lancer Evolution VIII CT9A 4G63 (01/2003-02/2005)

Product Reviews


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RHDJapan Store Reviews

Received the item about a week earlier than the estimated date and the item is beautiful, can't wait to use it!

Probably the best BOV on the market for the BNR32. Rather than just being something you have to figure out where to place, this is a complete replacement for the pipe between the intercooler piping and the throttle chamber. It takes some more work, but requires no modifying, and is completely bolt-on. Definitely a must-have, for the sound alone.

Quality product

I've been using this boost controller for a while now. Easy to setup and mount. Interface is easy to use, but does require a lot of trial and error. It's a good buy based on other ebc's in the market. I've had a hallman boost controller where you can set it once and forget about it, but I needed adjustable pressure settings. This fills all the requirements I need.

awesome parts for a awesome price

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