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ARP Porsche 930 Turbo 1978-1979 Crankcase Thru Bolt Kit (3.0L / 3.3L) 204-5405

$1,246.56

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ARP Porsche 930 Turbo 1978-1979 Crankcase Thru Bolt Kit (3.0L / 3.3L) 204-5405

$1,246.56

$1,246.56

Fits 1978-1979 Porsche 930 Turbo (3.0L / 3.3L).

The ARP Crankcase Thru Bolt Kit is an essential upgrade for Porsche 911/930 engine builds, providing the superior clamping force needed to maintain case integrity and prevent oil leaks. When assembling air-cooled cases, factory hardware can often be a weak point under high thermal loads; these fasteners are engineered to exceed OE specifications and ensure precise alignment of the crankcase halves.

  • Manufactured from premium 8740 chrome moly steel
  • Heat-treated to a tensile strength of 200,000 psi
  • Precision J-form threads rolled after heat treatment for maximum fatigue resistance
  • Includes all necessary thru-bolts, nuts, and washers for a complete installation
  • Designed specifically for Porsche 3.0L and 3.3L crankcase configurations
  • Manufacturer Part Number: 204-5405
🔧 Fitment & Compatibility
Year Make Model Submodel
1978-1979 Porsche 930 Turbo

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