GSC Power Division 4B11T 23-8N Chrome Polished Exhaust Valve - 29mm Head (STD) - SET 8
GSC Power Division 4B11T 23-8N Chrome Polished Exhaust Valve - 29mm Head (STD) - SET 8
Part number: 0WQ66
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
GSC Power Division 4B11T by GSC Power-Division. Highlights include GSC Power-Division STD Size Exhaust Valve for EVO X 4B11T and swirl polished heads for smoother air flow over the valve. Burned or bent valves cause misfires and low compression. Guides that wear let valves wobble and burn oil.
Key features
- GSC Power-Division STD Size Exhaust Valve for EVO X 4B11T
- Swirl polished heads for smoother air flow over the valve
- Back cut to reduce valve weight for higher rpm, higher boost pressure and allow for more aggressive cam profiles without increasing valve spring seat pressures
- Valve stems are micropolished to allow for less oil retention on the stem which creates less drag on the stem to guide for a smoother motion
- Valve tips are either hardened or have a stelite wafer tip fused so that the tip is within 5 Rockwell C of the rocker or valve tappet for extended life and less wear
- 29mm Head
- SET 8
Specifications
- Brand: GSC Power-Division
- Part type: Valve
Fitment
This listing does not name specific vehicles. Match the part number and the specifications with the part you are replacing.
What it does
Intake valves let the air and fuel mixture into the cylinder; exhaust valves let the burned gases out. Using the correct part for your exact engine keeps oil pressure, sealing and timing where the engine was designed to run, and doing related parts at the same time saves taking it apart twice.
Installation & tips
- Have the valve seats cut or lapped so the new valves seal fully.
- Valve stem seals: Always new with new valves.
- Head gasket: The head comes off for this job.
- Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.
FAQ
Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Measure the part you are replacing and compare it with the specifications above.
Before you order: fitment and what to plan
Intake valves let the air and fuel mixture into the cylinder; exhaust valves let the burned gases out.
Fitment notes
- Specs, lead time and warranty come from the manufacturer and supplier and can change. The details above this guide are the latest we have.
Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.
Ask about fitmentPlan the whole job
- Valve stem seals. Always new with new valves.
- Head gasket. The head comes off for this job.
More for your car: Exhaust Valves · All Intake Valves · Engine
Questions about engine valves
Will this fit my car?
How do I know a valve is bad?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.