GMHighTechPerformance Homepage

2005 Pontiac Gto

A top quality head gasket was crucial to this project being done right: The AFR and Speed Inc. crews requested .040-inch Cometic MLS gaskets in a 4.060 bore size (PN H1518040S, $159/pair). They are made out of a "spring" stainless steel--they can withstand a higher temperature and will hold a torque very well. The spring effect is kind of like using a lock washer and prevents the bolts from backing out under high cylinder pressure. The .040s requested for our AFRs are a bit thinner than a standard .051 LS1 gasket for better quench.
2005 Pontiac GTO - LS2 Heads/Cam Swap

 A top quality head gasket was crucial to this project being done right: The AFR and Speed Inc. crews requested .040-inch Cometic MLS gaskets in a 4.060 bore size (PN H1518040S, $159/pair). They are made out of a "spring" stainless steel--they can withstand a higher temperature and will hold a torque very well. The spring effect is kind of like using a lock washer and prevents the bolts from backing out under high cylinder pressure. The .040s requested for our AFRs are a bit thinner than a standard .051 LS1 gasket for better quench.  View Related Article

 

 

Get Adobe Flash player

Car Research Guide