The Enginetech GD3057 is a 4-pack of exhaust-side valve guides engineered as a stock replacement for 1993-2011 Buick, Cadillac, Pontiac engine applications.
Important Notes
- Sold as a 4-pack.
- Application side: Exhaust valve position - confirm you are replacing the correct side.
- Plain ID: smooth inner bore - standard finish for most applications.
Specifications
| Brand | Enginetech |
| Part Number | GD3057 |
| Product Type | Valve Guides |
| Quantity per Pack | 4 |
| Inner Diameter | .2335" |
| Outer Diameter | .433" |
| Length | 1.499" |
| Material | Iron |
| ID Finish | Plain ID |
| Application Side | Exhaust |
| Country of Origin | Taiwan |
Vehicle Fitment
- Years: 1993-2011
- Makes: Buick, Cadillac, Pontiac
- Models: Allante, Bonneville, DTS, DeVille, Eldorado, Lucerne, SRX, STS, Seville, XLR
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.
