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Fi Performance

SS-800 EJ25 Short Block - Build a 800HP Subaru Engine

SS-800 EJ25 Short Block - Build a 800HP Subaru Engine

$5,799.00
$5,799.00
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Shipping calculated at checkout.
Outfront 1/2" Head Stud kit
Athena fire lock head gasket set
FiP 11R improved oil pump

Push the limits of your Subaru EJ25 build with the SS-800 Short Block. This race-ready block with forged internals and meticulous assembly is ready to support extreme horsepower levels, capable of handling 800whp.

  • Features:
  • JE Forged Pistons with upgraded 210" wall pins (99.75mm Bore, 2618 Alloy) 
  • High Performance Main & Rod Bearings (CT-1 Coated)
  • H-Beam +2mm Connecting Rods (ARP Custom Aged 625 or L19 Rod Bolts)
  • New OEM Subaru 2.5L Case Halves (Closed Deck V3 )
  • New OEM Subaru Nitrided 2017+ STI Crankshaft
  • Professionally Blueprinted and Assembled at Fi Performance
  • Machined to support 1/2" head studs


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                Transform Your Subaru – Proven Performance at FI

                Unlock the true power of your Subaru with FI Performance. Our team of expert technicians doesn't just install parts – we meticulously build, tune, and refine high-performance machines. Our track record of dyno results and satisfied customers speaks for itself. Let us unleash the beast within your Subaru.