EMPI Hi-Performance Dual Port Cylinder Head | VW Type 1 Aircooled | 94mm, SS Valves, 3-Angle (98-1375-B)
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EMPI Hi-Performance Dual Port Cylinder Head — 94mm Bore, Stainless Valves, 3-Angle Valve Job (98-1375-B)
The EMPI 98-1375-B is a Hi-Performance dual-port cylinder head for air-cooled VW Type 1 big-bore engines with 94mm pistons (1914cc, 2110cc and 2276cc builds) in a Beetle, Bus, Karmann Ghia, Type 3 or Thing. It is the 98-1355-B casting machined for 94mm, with stainless Manley valves (35.5mm intake / 32mm exhaust), hi-rev springs, chromoly retainers and a 3-angle valve job. Sold each.
Part numbers: EMPI 98-1375-B · based on EMPI 98-1355-B casting · UPC 707924472363
Fitment
| Years | Vehicle | Notes |
|---|---|---|
| Dual-port engines | VW Beetle | 94mm big-bore builds (1914cc / 2110cc / 2276cc) |
| Dual-port engines | VW Bus | Dual-port big-bore builds |
| Dual-port engines | VW Karmann Ghia | Dual-port big-bore builds |
| Dual-port engines | VW Type 3 | Dual-port big-bore builds |
| Dual-port engines | 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 |
Specifications
| Spec | Detail |
|---|---|
| Bore | 94mm, dual-port casting (98-1355-B based) |
| Displacements | 1914cc, 2110cc and 2276cc big-bore/stroker builds |
| Valves | 35.5mm intake / 32mm exhaust, stainless Manley |
| Springs | Hi-rev single valve springs |
| Retainers / keepers | Chromoly retainers, hardened keepers |
| Valve guides | Bronze |
| Valve job | 3-angle performance |
| Chamber volume | 51cc |
| Intake port volume | 53cc |
| Exhaust port volume | 56.5cc |
| Spark plug thread | 14mm x 1/2" |
| Material | Special aluminum alloy, fully repairable |
| Competition | SCORE approved for Class 11 |
| Quantity | Sold each |
| Shipping dimensions | 12 x 9 x 7 in |
What's included
- One Hi-Performance dual-port cylinder head machined for 94mm (sold each)
Not included
- Lash caps (P/N 00-4006-0) — required with stainless valves, sold separately
Why it matters
Big-bore 94mm builds need heads cut to match, and this is the stainless-valve answer short of a full race head. The hi-rev springs, chromoly retainers and 3-angle valve job support the extra displacement of a 1914cc to 2276cc engine.
Installation notes
- Lash caps (P/N 00-4006-0) are required for all stainless steel valve applications — sold separately.
- Match the head to your bore: use the 85.5mm or 90.5/92mm version for those cylinder sizes.
Frequently Asked Questions
What bore is the EMPI 98-1375-B head machined for?
It is machined for 94mm pistons.
What engine sizes does the EMPI 98-1375-B fit?
It suits 1914cc, 2110cc and 2276cc big-bore/stroker dual-port Type 1 builds.
Do I need lash caps with the 98-1375-B?
Yes. Lash caps (00-4006-0) are required with stainless valves and are sold separately.
Will the 98-1375-B fit an 85.5mm or 90.5/92mm engine?
No. Those bores are not confirmed; use the matching-bore EMPI head. Single-port and Type 4 engines are also not confirmed.
Is the EMPI 98-1375-B sold each or as a pair?
It is sold each.
What is the part number and UPC?
EMPI 98-1375-B, UPC 707924472363.
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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.
