IAG 800 Series FA20 (10.5:1 Compression Ratio) Closed Deck Short Block 13-21 BRZ / FRS / GT86 GEN_2004-2005 STI and maintain consistent engine performance

and maintain consistent engine performance

Put simply

cohesive appearance

adjustable damping

IAG 800 Series FA20 (10.5:1 Compression Ratio) Closed Deck Short Block 13-21 BRZ / FRS / GT86 GEN_2004-2005 STI and maintain consistent engine performanceThe IAG 800 Short Block is designed for modified FA20 Subaru BRZs or FT86s running larger aftermarket turbochargers that require a stronger foundation to handle increased cylinder pressures. Featuring IAG Spec H Beam forged connecting rods and a proprietary closed deck cylinder support system, this short block strengthens the OEM FA20 cylinder walls. Head gasket sealing is enhanced with o rings and 1 2" head studs to ensure reliability under high