Billet 993GT2/993 Turbo Cylinder Head

FVD Spec. Billet 993GT2/993 Turbo Cylinder Heads:_x000B__x000B_ï Interchangeable fit with GT2 & Turbo standard cylinder head_x000B_ï Fully CNC machined from solid billet for maximum geometrical accuracy_x000B_ï Made from Aerospace grade 2618 aluminum alloy, as commonly used for F1 & GT race pistons which has the highest possible material strength at elevated temperatures_x000B_ï Machined for 49.0 x 9.0 intake and 41.5 x 9.0 exhaust valves_x000B_ï Optimized combustion chamber reduces squish crevice volume - the effect of which increases chamber turbulence and results in higher flame speed, which improve's power, torque and efficiency._x000B_ï 15mm outside diameter sintered steel valve guides for reduced wear & improved valve support at high temperature_x000B_ï Sintered steel valve seats for maximum life & heat rejection from valves_x000B_ï Advanced Intake & Exhaust port design (Optimized for high velocity)_x000B_ï Solid lower fins for maximum strength around cylinder seal_x000B_ï Small diameter spark plugs to reduce stress around plug holes_x000B_ï Pocket & drilling on top face for oil cooling from 993 cam carrier_x000B_ï Stock intake small diameter spark plugs to reduce stress around plug holes_x000B__x000B_This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.