- Beefed-up Intake & Exhaust Ports for massive porting without the need for welding
- Special Aluminum Alloy for strength and durability... plus repairable
- Added material surrounding the combustion chamber for deep fly cutting
- Exhaust air passages are clear for proper cooling
- 12mm, 3/4" reach plug
- Competition Dual Valve Springs, Chromoly Retainers, Hardened Keepers, Bronze Valve Guides, S/S Valves & Gaskets
- Hi-Performance 3-Angle valve grind
Available in three wedge-port designs, all feature Stainless Steel Valves, Racing Valve Seats, Bronze Valve Guides, New 4037 Hi-Performance Dual Valve Springs, Chromoly Retainers, Hardened Keepers, Gaskets, Rocker, Exhaust and Intake Studs. Complete with a professional Performance Valve job & assembly. Three wedge-port designs to bring out the horsepower in all popular engine combinations. All three designs have been Race-Proven!