FiP-SS-700 Short Block - Build a 700HP Subaru Engine (Closed Deck)

Built to Handle 700 WHP

One of our best-selling short blocks worldwide, trusted by high-power Subaru builds across the globe. The FiP-SS-700 Short Block is engineered for performance, featuring a closed-deck design, premium forged internals, and precision assembly to reliably support up to 700 wheel horsepower.

Whether you’re building a street monster or a track-focused setup, this short block provides the strength and reliability required for serious power.

Key Features

• JE FSR Forged Pistons (2618 Alloy)

• H-Beam Forged Connecting Rods with ARP 2000 Rod Bolts

• High-Performance Coated Main & Rod Bearings

• Seasoned & Machined OEM Subaru 2.5L Case Halves
  (V3 Closed-Deck Conversion)

• Subaru Nitrided 2017+ STI Crankshaft

• Precision Blueprinting & Assembly by Fi Performance

Power & Application Notes

• Designed to support up to 700 WHP

• Ideal for high-boost and high-RPM applications

• Built for reliability under extreme load and heat

Important Notes

• This is a premium short block for serious performance builds
  We strongly recommend pairing it with:

  • High-performance cylinder heads

  • Upgraded head studs

  • Supporting fuel and valvetrain components

• For applications exceeding 600 HP with a 7,700 RPM limiter, we strongly recommend using our modified oil pump to ensure proper lubrication and engine longevity.