The Enginetech GD3142 is a 4-pack of valve guides engineered as a stock replacement for 2001-2016 Chevrolet, GMC, Hummer engine applications.
Important Notes
- Sold as a 4-pack.
- Universal intake/exhaust fitment: this guide is specified for both valve positions on supported engines.
- Spiral ID: internal grooves distribute oil along the valve stem for improved lubrication and longer service life.
Specifications
| Brand | Enginetech |
| Part Number | GD3142 |
| Product Type | Valve Guides |
| Quantity per Pack | 4 |
| Inner Diameter | .2755" |
| Outer Diameter | .4547" |
| Length | 1.967" |
| Material | Iron |
| ID Finish | Spiral ID |
| Application Side | Intake/Exhaust |
| Country of Origin | Taiwan |
| OEM / Aftermarket Cross References | FEL-PRO:VG1445 |
Vehicle Fitment
- Years: 2001-2016
- Makes: Chevrolet, GMC, Hummer
- Models: C4500 Kodiak, C4500 Topkick, C5500 Kodiak, C5500 Topkick, Express 2500, Express 3500, Express 4500, H1, Savana 2500, Savana 3500, Savana 4500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, Silverado 3500 Classic, Silverado 3500 HD
Valve guides are precision-machined cylindrical sleeves press-fit into the cylinder head that guide the valve stem's travel and control valve-to-seat alignment during combustion cycles. Worn guides increase stem-to-guide clearance, causing oil consumption, valve seal failure, loss of seat contact, and premature valve and seat wear. Installing new guides during a valve job restores correct stem alignment, ensures proper valve sealing, and extends the service life of the valves, seats, and stem seals that work with them.
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm, including lead and nickel.
