Fel-Pro 1-piece oil pan gasket ('75-'85)

[COBALT]

FEL-OS34510T. You can get it at Summit Racing for $32.39.

It Rocks. The only sticky part is using the plastic snap studs that screw into the corner holes to align the gasket and oil pan. You have to be careful not to snug down the smaller bolts until you get those studs out. They can be stubborn, and if you twist them too much trying to get them out they'll break. Also make sure your oil pan holes line up perfectly, so the studs come out easily.

Also, the pan bolts have to be extra long so they go through the gasket. You can use stock bolts, but you may not get enough bolt into the lower deck of the engine block, and you'll have to use a floor jack to push the pan against the block to get it close enough...