Holley Cast Aluminum Timing Chain Cover - 21-150 Drop Ship Application Buick-GS 71-72 Buick-Skylark 71-72Olds-Cutlass

Application Buick-GS 71-72 Buick-Skylark 71-72Olds-Cutlass 71-72 Pontiac-GTO 71-72Pontiac-Lemans 71-72

5 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold

1951-1952 GMC 100 Pickup

and 12846ERL regulators

4L V8 1970 Pontiac Laurentian 454/7

Holley Cast Aluminum Timing Chain Cover - 21-150 Drop Ship Application Buick-GS 71-72 Buick-Skylark 71-72Olds-CutlassOverview: Holley now offers a solution to the plastic OEM timing chain covers on 1996 up Vortec Small Block Chevy engines. Our cast aluminum timing chain covers are an excellent upgrade from the OEM part, offering the superior durability of an aluminum part with improved functionality. These cast aluminum covers feature timing indicators molded into the body and are available with or without a crank sensor provision to accommodate both carbureted and