Holley 21-151 Cast Aluminum Timing Chain Cover

Vortec/Small Block Chevy Cast Aluminum Timing Chain Cover - Black Finish

Part Number: 21-151

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 EFI applications. The covers are available in two finishes, Natural Cast and Satin Black. They are packaged with a high quality gasket and E-coated mounting hardware for added corrosion resistance

Features and Benefits

• Designed as an upgrade from the plastic OEM timing chain covers on 1996-up Vortec Small Block Chevy engines - Replaces GM part numbers 10244600, 12523972, 12523973, 12558343, 12562818, & 93800970
• Excellent upgrade for Chevrolet Performance crate engines that use the plastic timing chain cover
• Available for EFI (with crank sensor provisions) and carbureted applications (without crank sensor provision)
• Includes over-molded FKM oil seal, virtually eliminating concerns of the seal spinning out at high temperatures, which is common with other aluminum timing covers
• Timing indicator cast into the cover – Intended for use with 8” Vortec balancers and other popular 8” aftermarket balancers
• Accommodates both stock and aftermarket water pumps
• Includes high quality gasket, corrosion resistant E-coated hardware, and dowel pins
• Offered in Natural Cast and Satin Black finishes

Note:- Fits both Small Block Chevy (SBC) & VORTEC series Small Block Chevy applications- Mounting holes at the 10 o'clock and 2 o'clock positions are NOT used on VORTEC series engine fitments- Supplied Dowel pins are used on VORTEC series engines fitments ONLY, early Small Block Chevy (SBC) have dowel pins installed in the block and will not be used.