EMPI # 98-1331-B GTV-2 DUAL PORT CYLINDER HEAD STAINLESS 40X35.5 VALVES 85.5MM BORE COMPLETE WITH VALVES & SINGLE VALVE SPRINGS 20% LARGER INTAKE & EXHAUST PORTS WITH ADDITIONAL CASTING FOR PORT & POLISH WORK! FITS : ALL T1 BEETLE / BUS UPRIGHT ENGINES. The EMPI GTV-2 Cylinder head casting out-classes all the competition! Beefed up Intake & Exhaust Ports allow massive porting without the need for welding. Special Aluminum Alloy for Strength and Durability and is repairable. Intake & Exhaust ports are 20% larger than stock. Has added material surrounding the Combustion Chamber for deep fly cutting. Thick interior walls for porting. Exhaust Air Passages are clear for excellent cooling.…