.3125" thick open center base gasket for Holley square flange 4150 / 4160 carburetor and square flange Holley EFI throttle body applications. Hardware included. Compression support grommets in mounting corners.Base Gasket Mounting Hardware Included
Features
Specifications
| Brand | Holley |
| Emission Code | 5 |
| Product Type | Base Gasket |
| Thickness | .337" +/- .015" |
| Thread | 5/16-18 & 5/16-24 |
| Gasket Bore | Open Center |
| Throttle Bore | 1.75" maximum |
| Nut | 1/2" x 5/16"-24 |
| Stud Length | 1.62" |
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