Audi 2.7L Biturbo RACE cylinder head gaskets BAR-TEK®

Special BAR-TEK® Race metal cylinder head gaskets for the 2.7 litre biturbo engine as in the Audi S4.The thicker head gasket made of multi-layer metal lowers the compression ratio. This allows higher boost pressures to be run without the engine starting to knock.In addition, your 2.7 engine has more clearance between piston and the combustion chamber, as over-revving can cause serious damage to the crankshaft!Features: Bore: 83.5mm 1.7mm thick Compression ratio approx. 8.9:1 Bore 83.50 mm Optimum compression for increased performance Multi-layer metal gasket For higher boost pressures Set of 2 pieces suitable for the engine code letters: AGA, AGB, AJG, AJK, ALF, ALW, AML, AMM, APB, APC, APS, APZ, ARE, ARJ, ARN, ASM, AZA, AZB, BDV, BEL, BES, APS, ARJ, BDV Supplied with 2 gaskets for right and left cylinder! If you need a different thickness, please contact us. We can supply up to 3.7 mm. We recommend in any caseARP stud boltso that the engine can withstand the higher boost pressure.