EMPI Hi-Performance Dual Port Cylinder Head | VW Type 1 Aircooled | 94mm, SS Valves, 3-Angle (98-1375-B)

EMPI Hi-Performance Dual Port Cylinder Head — 94mm Bore, Stainless Valves, 3-Angle Valve Job (98-1375-B)

Big-bore 94mm builds need heads cut to match, and these are the stainless-valve answer short of a full race head. EMPI's Hi-Performance dual-port head (98-1375-B) is the proven 98-1355-B casting machined for 94mm pistons, with stainless Manley valves, hi-rev springs, chromoly retainers, bronze guides, and a 3-angle valve job. SCORE-approved, sold each.

Vehicle Fitment

• VW Beetle: dual-port big-bore builds, 94mm (1914cc / 2110cc / 2276cc)
• VW Bus: dual-port big-bore builds
• VW Karmann Ghia: dual-port big-bore builds
• VW Type 3: dual-port big-bore builds
• VW Thing: dual-port big-bore builds

Not confirmed: stock 85.5mm or 90.5/92mm bore (use the matching-bore head), single-port engines, Type 4 engines.

Why Choose EMPI?

You get genuine parts backed by real support.

Key Features & Benefits

• Machined for 94mm: direct fit for 1914cc, 2110cc, and 2276cc builds.
• Stainless Manley valves: 35.5mm intake / 32mm exhaust.
• Upgraded valvetrain: hi-rev single valve springs, chromoly retainers, and hardened keepers.
• Bronze valve guides: for durability.
• 3-angle performance valve job: improved flow.
• Special aluminum alloy: fully repairable.
• Race-ready: SCORE approved for Class 11 competition.
• Sold each.

Technical Specifications

• Bore: 94mm, dual port casting (98-1355-B based)
• Valves: 35.5mm intake / 32mm exhaust, stainless Manley
• Chamber Volume: 51cc
• Intake Port Volume: 53cc
• Exhaust Port Volume: 56.5cc
• Spark plugs: 14mm x 1/2"
• Part Number: 98-1375-B (UPC 707924472363)

Important: Lash caps (P/N 00-4006-0) are required for all stainless steel valve applications — sold separately.

Frequently Asked Questions

• What bore are these machined for? 94mm pistons.
• What displacements? 1914cc, 2110cc, and 2276cc big-bore/stroker builds.
• Do I need lash caps? Yes — required with stainless valves, sold separately (00-4006-0).
• Sold each or as a pair? Each.
• What's the part number? EMPI 98-1375-B (UPC 707924472363).
• Are you an authorized dealer? Yes.

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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. Wash hands following installation or before eating. All parts legal for use on pre-pollution controlled vehicles only.