2015-2021 Subaru WRX MAPerformance FA20DIT Built Shortblock Engine with Customer Supplied Core

2015-2021 Subaru WRX MAPerformance FA20DIT Built Shortblock Engine with Customer Supplied Core

Features:

• Engine blocks visit hot tank before and after machining for a clean, finished appearance
• FA20DIT Crankshafts are never cut or turned, and they receive a micro-polish treatment and balancing specifically for high performance race applications
• The First step in the machining process is resurfacing. The surface finish (RA) achieved as it is of the utmost importance in regards to head gasket sealing
• Next, bore the sleeves square to the deck surface
• It utilizes a three step honing process utilizing a MAP FA20 specific torque plate to ensure roundness. The honing process is finished with a plateau hone for the absolute best cylinder wall finish and ultimate ring seating

Includes:

• King XP Main and Rod Bearings Installed With MAPerformance Specs
• Carrillo or Manley Connecting Rods
• Manley Pistons