Holley 21-152 Cast Aluminum Timing Chain Cover

Holley 21-152 Cast Aluminum Timing Chain Cover

• 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