Description
Overview:
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:
- 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, see Part Number 21-150)
- 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
- Natural Cast Finish (For Satin Black Finish see Part Number 21-153)
Fitment Notes:
- 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.
- This Timing Chain cover INCLUDES the Crank Sensor Port Provision, for models WITHOUT the CKP Provision see Part Number 21-150
- Does NOT work with Double Roller Timing Chain or Non-Roller Cam!
- Only for GAS Engines! Not for use with Bi-Fuel or CNG Applications!
Applications:
| Year | Make | Model | Engine | Fitment Notes |
|---|---|---|---|---|
| 1999-2000 | Cadillac | Escalade | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2000 | Chevrolet | C35 (Mexico Only!) | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | Chevrolet | C1500 | 5.0L V8 305 CID | With Crank Sensor Port Provision |
| 1996-1999 | Chevrolet | C1500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | Chevrolet | C1500 Suburban | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1998 | Chevrolet | C2500 | 5.0L V8 305 CID | With Crank Sensor Port Provision |
| 1996-2000 | Chevrolet | C2500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | Chevrolet | C2500 Suburban | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2000 | Chevrolet | C3500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2002 | Chevrolet | Express 1500 | 5.0L V8 305 CID | With Crank Sensor Port Provision |
| 1996-2002 | Chevrolet | Express 1500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2002 | Chevrolet | Express 2500 | 5.0L V8 305 CID | With Crank Sensor Port Provision |
| 1996-2002 | Chevrolet | Express 2500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2002 | Chevrolet | Express 3500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996 | Chevrolet | G30 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | Chevrolet | K1500 | 5.0L V8 305 CID | With Crank Sensor Port Provision |
| 1996-1999 | Chevrolet | K1500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | Chevrolet | K1500 Suburban | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996 | Chevrolet | K2500 | 5.0L V8 305 CID | With Crank Sensor Port Provision |
| 1996-2000 | Chevrolet | K2500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | Chevrolet | K2500 Suburban | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2000 | Chevrolet | K3500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | Chevrolet | P30 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | Chevrolet | Tahoe | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2000 | Chevrolet | Tahoe Limited | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2000 | Chevrolet | Tahoe Z71 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2003 | Chevrolet | W3500 Tiltmaster | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2003 | Chevrolet | W4500 Tiltmaster | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | GMC | C1500 | 5.0L V8 305 CID | With Crank Sensor Port Provision |
| 1996-1999 | GMC | C1500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | GMC | C1500 Suburban | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1998 | GMC | C2500 | 5.0L V8 305 CID | With Crank Sensor Port Provision |
| 1996-2000 | GMC | C2500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | GMC | C2500 Suburban | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2000 | GMC | C3500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996 | GMC | G3500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | GMC | K1500 | 5.0L V8 305 CID | With Crank Sensor Port Provision |
| 1996-1999 | GMC | K1500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | GMC | K1500 Suburban | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2000 | GMC | K2500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | GMC | K2500 Suburban | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2000 | GMC | K3500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | GMC | P3500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2002 | GMC | Savana 1500 | 5.0L V8 305 CID | With Crank Sensor Port Provision |
| 1996-2002 | GMC | Savana 1500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2002 | GMC | Savana 2500 | 5.0L V8 305 CID | With Crank Sensor Port Provision |
| 1996-2002 | GMC | Savana 2500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2002 | GMC | Savana 3500 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2003 | GMC | W3500 Forward | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1998-2003 | GMC | W4500 Forward | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-1999 | GMC | Yukon | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2000 | GMC | Yukon Denali | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1996-2003 | Isuzu | NPR | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1998-2003 | Isuzu | NPR-HD | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2002-2004 | Workhorse | FasTrack FT1061 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2000-2001 | Workhorse | FasTrack FT1260 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2002-2005 | Workhorse | FasTrack FT1261 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2000-2002 | Workhorse | FasTrack FT1460 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2002-2005 | Workhorse | FasTrack FT1461 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2000-2001 | Workhorse | FasTrack FT1600 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2002-2005 | Workhorse | FasTrack FT1601 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2000-2001 | Workhorse | FasTrack FT1800 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2002-2004 | Workhorse | FasTrack FT1801 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2002-2003 | Workhorse | FasTrack FT1802 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2000-2005 | Workhorse | P30 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 2001-2002 | Workhorse | P32 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
| 1999-2004 | Workhorse Custom Chassis | P42 | 5.7L V8 350 CID | With Crank Sensor Port Provision |
Specs:
| Application | Small Block Chevy |
|---|---|
| Brand | Holley |
| Crank Sensor Provision | Yes |
| Emission Code | 5 |
| Engine | Chevrolet VORTEC V8 |
| Finish | Natural |
| Gaskets Included | Yes |
| Material | Aluminum |
| Mounting Hardware Included | Yes |
| Product Type | Timing Chain Cover |
| Thickness | Standard OEM |
| Warranty | Limited 90 Day |
Interchange:
| Reference Name | Reference Number |
| OEM | 10244600 |
| OEM | 12523972 |
| OEM | 12523973 |
| OEM | 12558343 |
| OEM | 12562818 |
| OEM | 93800970 |
