EMPI GTV-2 Stage 1 CNC Wedge Ported Heads — 94mm, 40/35.5mm SS Valves, Pair | VW Type 1 (98-1431-B)

EMPI GTV-2 Stage 1 CNC Wedge Ported Heads — 94mm, 40/35.5mm SS Valves, Pair | VW Type 1 (98-1431-B)CNC ported heads take the guesswork out of porting every port cut the same, ready to bolt on. EMPI's GTV 2 Stage 1 wedge port heads (98 1431 B) are machined on a 5 axis CNC mill for 94mm bore, with 4035. 5mm stainless Manley valves and dual hi rev springs. Stage 1 is the street strip starting point in the CNC range, well suited to 19142110cc builds. Sold as a matched pair. Features 94mm bore, GTV 2 dual port casting Stage 1 Wedge Port CNC machining 5

CNC-ported heads take the guesswork out of porting — every port cut the same, ready to bolt on. EMPI's GTV-2 Stage 1 wedge-port heads (98-1431-B) are machined on a 5-axis CNC mill for 94mm bore, with 40×35.5mm stainless Manley valves and dual hi-rev springs. Stage 1 is the street/strip starting point in the CNC range, well-suited to 1914–2110cc builds. Sold as a matched pair.

Features

• 94mm bore, GTV-2 dual port casting
• Stage 1 Wedge-Port CNC machining — 5-axis CNC mill
• 40mm intake / 35.5mm exhaust stainless steel Manley valves
• Dual hi-rev valve springs
• Chromoly retainers and hardened keepers
• Bronze valve guides
• Custom intake gasket included
• 12mm 3/4" reach spark plug holes
• Rocker, exhaust, and intake studs included
• Performance 3-angle valve job
• Sold as a matched pair

Specifications

• Valves: 40mm intake / 35.5mm exhaust, stainless Manley
• Springs: dual hi-rev | Port: Stage 1 CNC wedge
• Spark plugs: 12mm 3/4" reach
• Part Number: 98-1431-B | UPC: 707924443844
• Shipping weight: 27.5 lb (pair) | Boxed: 18 x 12 x 9 in

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.

Fitment

CONFIRMED: VW Type 1 dual-port big-bore builds running 94mm bore — 1914cc, 2110cc, 2276cc. Beetle, Bus, Karmann Ghia, Type 3, Thing. NOT CONFIRMED: stock 85.5mm or 90.5/92mm bore (use the matching-bore CNC head), single-port engines, Type 4 engines.

Questions & Answers

What does CNC porting get me? Consistent, repeatable port work cut on a 5-axis mill — ready to bolt on, no hand porting needed.

What bore are these for? 94mm pistons (1914-2276cc).

How does Stage 1 compare to Stage 3? Stage 1 is the street/strip port; Stage 3 has larger valves and a more aggressive wedge port for maximum flow.

Sold each or as a pair? Matched pair.

What's the part number? EMPI 98-1431-B (UPC 707924443844).

Are you an authorized dealer? Yes — Washburn's Metal is an authorized EMPI dealer.

Prop 65 Warning

WARNING: This product can expose you to chemicals including lead which are 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.