4.630 MLS Head Gasket .066 - BBC 1968-oldsmobile-cutlass-supreme-esi7774429 880 in Long - 12

880 in Long - 12 Point Head - Steel - Black Oxide - GM LS-Series - Set of 6

5 in ID - 7 in Length - 325 lb/in Spring Rate - Steel - Red Powder Coat - Each

Engine - SHP - Bare Block - 4 in Bore - 9

The Super 40 has that deep powerful sound of the Original 40 series but with all the benefits of performance and low interior resonance from the Delta Flow® technology

Breather - Push-In - Slant-Edge - 1-1/4 in Hole - Reusable - Recessed Red Bowtie Logo - Aluminum - Black Crinkle Powder Coat - Each

4.630 MLS Head Gasket .066 - BBC 1968-oldsmobile-cutlass-supreme-esi7774429 880 in Long - 12Cylinder Head Gasket 4. 630 in Bore 0. 066 in Compression Thickness Multi Layer Steel Big Block Chevy Each