Crest CNC EJ20 Billet Case Halves

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The CNC Billet Aluminum EJ case seeks to change the Subaru performance tuning market by reinventing the EJ and addressing virtually every weakness that exists in max-power builds. The Crest CNC EJ Block, (Formerly Willall) is machined from 6061-T6 Aerospace Aluminum and features Darton Ductile Iron Sleeves. The block is designed with increased material thickness over the OEM cast aluminum case halves and adds a unique 4-bolt bottom end for additional strength. Minimum Requirements To Build & Assemble: ARP Case Bolts (Sold separately) 14mm Head Studs (Sold separately) Internal components (Pistons, Rods, Bearings, Crank, All sold separately). Bore/Hone (subject to piston choice) Decking head gasket surface required Show more