1971-1982 Toyota Corolla Black Nitride Exhaust Valve by Supertech
Supertech exhaust valves are made from EV16 (21-8N) or EV8-Nb/w for greater strength at higher temperatures.
Features
- Head Diam: 39.00mm (+3.0)
- Stem Diam: 8.00mm
- Length: 110mm
- Magnetic friction welded wafer, Hardened to 52 HRC min
- One piece forged valve (non-magnetic)
- Black Nitride for superior hardness keeping core ductility
- Back-cut angle
- “Superfinish” valve stem with a surface roughness of about 1/3 of a regular valve
- Undercut stem
Benefits
- Improves durability and reduces carbon build up
- Less Friction
- Better Flow Rates
- Better Sealing
Applications
- 1971-1982 Toyota Corolla
What’s In The Box?
- 1 – Exhaust Valve
Warranty
- Due to the nature of the application, these parts are sold without any express warranty or any implied warranty of merchantability, or fitness for a particular purpose.