The Tomei racing valve set for the 4G63 DSM and Evo 1-9 models are ideal for high horsepower and racing. The oversized head diameter is tailored for each application to significantly improve flow rate. The waisted stem increases the volume of air and gases entering and exiting the combustion chamber as the valve extends. Each valve is precision-machined for the specific engine or application. The head, face, stem, and lock groove designs are optimized to enhance sealing performance, efficiency, and durability.
Vehicle Fitment:
1992-2006 Mitsubishi Evolution I-IX (Evo 1/2/3/4/5/6/7/8/9)
1990-1999 Mitsubishi Eclipse (GST/GSX)
1990-1998 Eagle Talon TSi
1990-1994 Plymouth Laser RS
1991-1992 Mitsubishi Galant VR4
(4G63 Engine)
Features:
• High Flow
• Heat Resistant
• Ultra Durable
• SUH35 Heat Resistant Steel Intake Valves
• INCONEL 751 Alloy Exhaust Valves
• Designed to withstand high power applications
Includes:
16 valves (8 intake valves & 8 exhaust valves)
| Tomei TA303A-MT01A 4G63 DSM/Evo Racing Valve Set | ||||||||||||
| Head Diameter (mm) | Stem Diameter (mm) | Length (mm) | ||||||||||
| INTAKE | 35 [+1.0] | 6.57 | 109.60 | |||||||||
| EXHAUST | 31.50 [+1.0] | 6.54 | 109.60 | |||||||||
| OEM Intake Valve Part Numbers | OEM Exhaust Valve Part Numbers |
| MD127840 (Old PN: MD127847) |
MD184078 (Old PN: MD127841, MD130164, MD127848 ) |
