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Description
EMPI GTV-2 Dual Port Cylinder Head 85.5mm - 40/35.5mm SS Valves - Single Spring - Part #98-1381-BIf you want a head that can grow with your build, the GTV 2 casting is the one to start from. EMPI's GTV 2 dual port head (98 1381 B) has intake and exhaust ports 20% larger than stock and extra chamber material for deep fly cutting run it as is for strong performance, or hand CNC port it from mild to wild. Machined for 85. 5mm bore with 4035. 5mm stainless Manley valves and single hi rev springs. Sold each. Features 85. 5mm bore, GTV 2 dual port
If you want a head that can grow with your build, the GTV-2 casting is the one to start from. EMPI's GTV-2 dual-port head (98-1381-B) has intake and exhaust ports 20% larger than stock and extra chamber material for deep fly-cutting — run it as-is for strong performance, or hand/CNC port it from mild to wild. Machined for 85.5mm bore with 40×35.5mm stainless Manley valves and single hi-rev springs. Sold each.
Features
- 85.5mm bore, GTV-2 dual port casting
- 40mm intake / 35.5mm exhaust stainless steel Manley valves
- Single hi-rev valve springs
- Chromoly retainers and hardened keepers
- Bronze valve guides
- 20% larger intake and exhaust ports than stock
- Added material around combustion chamber for deep fly cutting
- 12mm 3/4" reach spark plug holes
- Rocker, exhaust, and intake studs included
- 3-angle performance valve job
- Sold each
Specifications
- Valves: 40mm intake / 35.5mm exhaust, stainless Manley
- Springs: single hi-rev
- Ports: 20% larger than stock, ready for hand/CNC porting
- Spark plugs: 12mm 3/4" reach
- Part Number: 98-1381-B | UPC: 707924430769
- Shipping weight: 13.6 lb | Boxed: 12 x 9 x 7 in
Important
Lash caps (P/N 00-4006-0) are required for all stainless steel valve applications — sold separately. 12mm long-reach spark plugs (e.g. NGK D8EA) must be used in place of stock Bosch plugs.
Fitment
CONFIRMED: VW Type 1 dual-port engines running 85.5mm or 87mm pistons — Beetle (1971-1979), Bus (1971+), Karmann Ghia (1971-1974), Type 3, Thing. NOT CONFIRMED: big-bore 90.5/92/94mm builds (use the matching-bore GTV-2 head), single-port engines, Type 4 engines.
Questions & Answers
Can I port these? Yes — the GTV-2 casting has 20% larger ports and extra chamber material specifically so you can hand or CNC port from mild to wild.
What bore do they fit? 85.5mm or 87mm pistons.
What spark plugs? 12mm 3/4" long-reach (e.g. NGK D8EA), not stock Bosch.
Do I need lash caps? Yes — required with stainless valves, sold separately (00-4006-0).
What's the part number? EMPI 98-1381-B (UPC 707924430769).
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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy