Performance Multilayer Head Gasket for LS9 engines, can also be used for All LS engines including 4.8, 5.3, 5.7, 6.0, 6.2, 7.0 blocks. These are possibly the best gaskets for engines up to 4.100" bore. These gaskets are the preferred gasket for Turbo, Nitrous, Heads/Cam applications due to there superior strength.
4.100" bore, .055" compressed thickness, 7 layer