Remflex Exhaust Gaskets 1-13/16 x 1-7/8 square port Chevrolet, Big Block, 396 / 6.5L, 402 / 6.6L, 427 / 7.0L, 454 / 7.4L, Match to Stock Port, Manifold or Header Applications, 2/SetNew6.94E+11Item #: REM 2003
Remflex Exhaust Gaskets BBC 1-7/8 round port Chevrolet, V8, Big Block Round Port for Header Applications, 396, 402, 427, 454, 2/SetNew6.94E+11Item #: REM 2002
Remflex Exhaust Gaskets BBC Large round race port 2.4" diameter Chevrolet, Big Block, 396, 402, 427, 454, Large Round Race Port, 2/SetNew6.94E+11Item #: REM 2047