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Outfront Motorsports Stage 1 RA shortblock is for that added Protection against ring land failure on a lightly modified car.

This configuration includes:

  • Custom Outfront Motorsports spec EJ257 CP piston set (21cc)
  • New OEM STI black Nitrited 2017+ crankshaft
  • New OEM STI connecting rods
  • New OEM rod and main bearings
  • New OEM Case Bolts
  • All wrapped in a new OEM case.
  • Rear Covers, Rear Seal, and Pin Plugs Included!!!

This block is rated at 500 BHP

New OEM Type RA Shortblock W/ Forged Pistons

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