Extreme Duty Hi-Performance Exhaust Manifold Gaskets - Large 2-1/8" Square Port 454/502 Chevy - Sold in Pairs
These gaskets are graphite impregnated and designed to withstand the highest
of temperatures on high horsepower applications. For those of you looking
to do the job only once, insist on Hardin Marine Extreme Duty gaskets.
Quite possibly the last gasket you'll ever need. These gaskets are large 2-1/8" square port.