Universal AS41 Magnesium Engine Case – 043-101-025 The 043-101-025 is the latest universal, dual-relief engine case designed for upright air-cooled Volkswagen engines. Cast from high-quality AS41 Magnesium Alloy, this case offers the perfect balance of lightweight construction and thermal durability. It features a medium oil pick-up tube and is designed as a direct replacement for stock 1500cc to 1600cc engines, though its robust casting makes it an ideal foundation for high-performance and racing modifications. This case comes pre-installed with 8mm steel case savers, providing superior strength for cylinder head studs compared to threads tapped directly into the magnesium. Weighing approximately 25 lbs, it incorporates the dual-relief oiling system for better oil pressure control. It is designed to use the metal cam plug 113-101-157C or a performance aluminum O-ring style plug P/N 16-9524, ensuring a modern, leak-free seal for your build. Detailed Vehicle Compatibility VW Beetle: 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977 VW Super Beetle: 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979 VW Karmann Ghia: 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974 VW Type 3: 1967, 1968, 1969, 1970, 1971, 1972, 1973 VW Thing: 1973, 1974 VW Transporter: 1967, 1968, 1969, 1970, 1971 Product Highlights & Features AS41 Magnesium Alloy: Provides excellent heat dissipation and the structural integrity required for both stock and performance applications. Dual Relief Oiling: Features dual oil pressure relief valves for improved oil flow regulation and more consistent pressure across all RPM ranges. Factory Case Savers: Includes pre-installed 8mm steel case savers to prevent pulled head studs, a critical upgrade for engine longevity. Universal Replacement: Suitable for all 1500-1600cc upright Type 1 based engine configurations. Will work for Type 3 Configurations with some modifications. Technical Specifications Part Number: 043-101-025 Material: AS41 Magnesium Weight: 25 lbs Stud Size: 8mm Oil Pick-up: Medium Tube Installation & Maintenance Tips Cam Plug Selection: This case requires a metal cam plug (113-101-157C) or an aluminum O-ring plug. Do not use the plastic or poly style plugs unless specified by your engine builder for this specific casting. Cleaning and Preparation: Even though this is a new case, always "hot tank" or thoroughly wash the case and blow out all oil galleries with compressed air to remove any machining debris before assembly. Main Bearing Fit: Check the alignment of the main bearing dowel pins. If they are not perfectly seated, the bearings will spin and cause catastrophic engine failure. Sealant Usage: Use a high-quality case sealant like Curil-T or Permatex on the mating surfaces. Apply a very thin layer to avoid excess sealant squeezing into the oil galleries. Gasket Set & Universal Hardware Kit: Don't forget to order your gasket set so you can seal up your new engine, as well as the universal case hardware kit. 043101025
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