Mr Gasket Performance Exhaust Gasket Small Race Port 1.12"W x 1.48"H
Suit Mopar, Small Block LA Chrysler 273-318

Mr Gasket was the first manufacturer to incorporate slotted mounting bolt holes at the ends of each exhaust gasket. This allows the gasket to be installed without removing the header flange or exhaust manifold entirely from cylinder head, making installation faster and easier.