PROFORM's soft conforming aluminum gaskets easily conform to the header flanges for a superior seal. Durable, theft-resistent clamshell packaging. Each kit comes with 2 gaskets. Product Features:Square Port Dual Layer DesignConforms to Header Flanges even w/ Minor Surface ImperfectionsEasily Mates and Conforms To The Surface Of Exhaust Headers To Provide a Great Seal Each TimeFits Big Block Chevy Engines with Square Exhaust Ports (2.125)
