EMPI GTV-2 Dual Port Cylinder Head | VW Type 1 Aircooled | 90.5/92mm Bore, 40/35.5mm SS Valves, Dual Spring

EMPI GTV-2 Dual Port Cylinder Head — 90.5/92mm Bore, 40/35.5mm Stainless Valves, Dual Spring

The EMPI GTV-2 cylinder head casting out-classes the competition. Machined to fit 90.5mm and 92mm pistons and assembled with dual hi-rev valve springs for higher-RPM camshaft profiles, its beefed-up intake and exhaust ports allow massive porting without the need for welding. 40×35.5mm stainless Manley valves. Sold each.

Vehicle Fitment

• VW Beetle (Type 1): dual-port performance builds, 90.5/92mm bore (1776cc / 1835cc / 1914cc)
• VW Bus (Type 2): dual-port performance builds
• VW Type 3: dual-port performance builds
• VW Karmann Ghia: dual-port performance builds
• VW Thing: dual-port performance builds

Note: Recommended for high-lift / high-RPM camshafts.

Why Choose EMPI?

The GTV-2 casting is a proven platform for high-output street and race engines.

Key Features & Benefits

• Port-ready GTV-2 casting: 20% larger intake and exhaust ports than stock, with added material around the combustion chamber for deep fly cutting — massive porting without welding.
• Machined for 90.5/92mm: direct fit for 1776cc / 1835cc / 1914cc stroker builds.
• Dual hi-rev valve springs: for high-lift performance cams.
• Stainless Manley valves: 40mm intake / 35.5mm exhaust.
• Chromoly retainers and hardened keepers.
• Bronze valve guides: for durability.
• 3-angle performance valve job.
• Studs included: rocker, exhaust, and intake studs.
• Sold each.

Technical Specifications

• Bore: 90.5mm / 92mm, GTV-2 dual port casting
• Valves: 40mm intake / 35.5mm exhaust, stainless Manley
• Springs: dual hi-rev
• Ports: 20% larger than stock
• Spark plugs: 12mm 3/4" reach

Important: Lash Caps (P/N 00-4006-0) are required for all stainless steel valve applications — sold separately. 12mm long-reach spark plugs must be used in place of stock Bosch plugs. Verify rocker arm geometry and check for coil bind with dual springs.

Frequently Asked Questions

• What bore are these machined for? 90.5mm and 92mm pistons (1776cc / 1835cc / 1914cc).
• Why dual springs? They're assembled with dual hi-rev valve springs for high-lift / high-RPM camshaft profiles.
• Can I port them? Yes — the GTV-2 casting has 20% larger ports and extra chamber material, allowing massive porting without welding.
• Do I need lash caps? Yes — required with stainless valves, sold separately (00-4006-0).
• Anything to check when installing dual springs? Verify rocker arm geometry and check for coil bind.
• Are you an authorized dealer? Yes.

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WARNING: This product can expose you to chemicals including Lead known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov. All parts legal for use on pre-pollution controlled vehicles only.