The Enginetech GD9946 is a 4-pack of valve guides engineered as a stock replacement for 1967-2014 Buick, Cadillac, Chevrolet, GMC and more 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 | GD9946 |
| Product Type | Valve Guides |
| Quantity per Pack | 4 |
| Inner Diameter | .3430" |
| Outer Diameter | .5020" |
| Length | 2.25" |
| Material | Iron |
| ID Finish | Spiral ID |
| Application Side | Intake/Exhaust |
| Country of Origin | Taiwan |
| OEM / Aftermarket Cross References | Manley:7118, Elgin:57118, Ertel:9946, FEL-PRO:VG5005T, SB International:140-9946, General Motors:12529742, Pep Boys:C5005G, Pioneer:05104, Pioneer:09946, Qualcast:30-9946 |
Vehicle Fitment
- Years: 1967-2014
- Makes: Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac
- Models: Astro, Bel Air, Biscayne, Blazer, Bonneville, Bravada, Brookwood, C10, C15 Suburban, C15/C1500 Suburban, C1500, C1500 Suburban, C20, C20 Pickup, C20 Suburban, C25, C25 Suburban, C25/C2500 Pickup, C25/C2500 Suburban, C2500, C2500 Suburban, C30, C30 Pickup, C35, C35/C3500 Pickup, and more
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.
