EMPI GTV-2 VW Cylinder Heads - Dual Port Pair - Stage-1 Ported - for 90.5/92mm w/40x35.5 Valves

One Pair of EMPI's GTV-2 Racing VW Dual Port Cylinder Heads which are ported on a 5 axis CNC mill for increased flow. The Stage 1 Wedge Port flows 170 CFM out of the box for bolt on horsepower increases. The cylinder heads fit 90.5mm or 92mm Pistons & Cylinders and are cast with 20% larger than stock intake and exhaust ports for more strength and rigidity than stock heads. The GTV-2 cylinder heads have additional material around the combustion chamber and interior walls allowing for deep fly cuts and large porting without the need for welding. The dual port cylinder heads are assembled with Stainless Steel 40mm intake & 35.5mm exhaust valves. The valves are held in place with Dual Hi-Rev Springs, Chromoly Retainers and hardened keepers after the heads receive a professional, performance valve job. Sold as a pair, price listed is for 2 performance cylinder heads. The cylinder openings in the heads are roughly 98.5mm.

12mm, Long Reach Spark Plugs must be used instead of stock Bosch Plugs.
- Machined for 90.5 or 92mm Pistons & Cylinders
- Stage 1 Wedge-Porting flows 170 Cubic Feet per Minute
- Ports cut on a 5 axis CNC mill for consistent, repeatable performance
- 20% Larger than stock Intake & Exhaust Ports
- Stainless Steel 40mm Intake & 35.5mm Exhaust Valves
- Additional material in the combustion chamber allows deep fly cutting
- Dual Hi-Rev Valve Springs, Chromoly Retainers & Hardened Keepers
- Drilled and tapped for 12mm, 3/4 Reach Spark Plugs
- Spark Plug positioned away from valve seats to eliminate stress cracks
- Thick walls around Intake & Exhaust Ports allows for custom porting
- Exhaust air passages are clear for proper cooling