EMPI HD Bubble-Top Engine Case | VW Type 1 Air-Cooled | 90.5/92mm Bore, Full-Flow (98-0453-B)

EMPI HD Bubble-Top Aluminum Engine Case — 90.5/92mm Bore, Full-Flow (98-0453-B)

The 90.5/92mm full-flow case is the foundation for the two most popular street big-bores there are — the 1776cc and 1835cc. EMPI's HD bubble-top aluminum case (98-0453-B) is an all-new casting, machined for 90.5/92mm cylinders and already drilled and tapped for full-flow oiling, so you can run an external filter and cooler without extra machine work.

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 90.5/92mm big-bore builds — 1776cc (90.5×69) and 1835cc (92×69). Not for stock 85.5mm or 94mm builds (use the matching bore case) or Type 4 engines.

Key Features & Benefits

• All-new heavy-duty aluminum bubble-top casting: added strength in the upper case
• Machined for 90.5/92mm cylinder spigots: ready for 1776cc and 1835cc builds
• Drilled and tapped for full-flow oil: plumb a filter/cooler with no added machining
• Fresh machining throughout: cam tunnel, mains, lifter bores

Technical Specifications

• Material: Heavy-duty aluminum, bubble-top, new casting
• Bore: Machined for 90.5/92mm
• Oiling: Full-flow drilled and tapped
• Part Number: 98-0453-B
• UPC: 707924368123
• Country of Origin: Brazil
• Shipping weight: 45 lb

Frequently Asked Questions

• What cylinder sizes does it take? Machined for 90.5mm or 92mm barrels.
• Is it ready for full-flow oil? Yes — drilled and tapped for full-flow.
• What displacements? 1776cc (90.5mm) and 1835cc (92mm) with stock stroke.
• Will it take 94mm barrels? No — use the 94mm-bore case for those.
• What's the part number? EMPI 98-0453-B (UPC 707924368123).

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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.