EMPI HD Bubble-Top Engine Case | VW Type 1 Air-Cooled | 94mm Bore, Full-Flow, 8mm Studs (98-0454-B)

EMPI HD Bubble-Top Aluminum Engine Case — 94mm Bore, Full-Flow (98-0454-B)

If you're building a 94mm big-bore or stroker motor, you can't run it in a stock case — the cylinder spigots have to be cut for the larger barrels. EMPI's HD bubble-top aluminum case (98-0454-B) is all-new, machined for 94mm cylinders and already drilled and tapped for full-flow oiling. It's the proper foundation for a 1914cc, 2110cc, or 2276cc build.

Vehicle Fitment

• VW Beetle: 1966–1979
• VW Super Beetle: 1971–1979
• VW Karmann Ghia: 1966–1974
• VW Type 3: 1966–1973
• VW Bus: 1966–1979

Confirmed for VW Type 1 94mm big-bore/stroker builds — 1914cc (94×69), 2110cc and 2276cc (94×82). Not for stock 85.5mm or 90.5/92mm builds (use the matching bore case) or Type 4 engines.

Key Features & Benefits

• All-new heavy-duty aluminum casting: stronger and more heat-stable than magnesium for high-output builds
• Bubble-top design: adds material in the high-stress upper case area
• Machined for 94mm cylinder spigots: ready for big-bore and stroker barrels
• Drilled and tapped for full-flow oil: no extra machine work to plumb an external filter/cooler
• 8mm case-stud threads: standard stud configuration

Technical Specifications

• Material: Heavy-duty aluminum, bubble-top, new casting
• Bore: Machined for 94mm
• Studs: 8mm
• Oiling: Full-flow drilled and tapped
• Part Number: 98-0454-B
• UPC: 707924368130
• Country of Origin: Brazil
• Shipping weight: 44.8 lb

Frequently Asked Questions

• What size cylinders does it take? Machined for 94mm bore barrels.
• Is it ready for full-flow oil? Yes — it's drilled and tapped for full-flow; no extra machining needed.
• Aluminum or magnesium? Heavy-duty aluminum — preferred for high-output big-bore and stroker motors.
• Will it fit a 90.5/92mm build? No — use the 90.5/92mm-bore case for those.
• What's the part number? EMPI 98-0454-B (UPC 707924368130).

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Prop 65 Warning

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov.