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| Combustion Seal Design | MLS bore bead |
| Materials/Construction | PermaTorqueMLS multi-layer steel |
| Mfg. | GM Performance |
| Heavy Duty Supplier | Yes |
| Material | PermaTorqueMLS multi-layer steel |
| Engine Family | Chevrolet V8 Big Block |
| Bore Size (in.) | 4.640 |
| Thickness | 0.046 |
| Combustion Chamber Volume (cc) | 12.800 |
| Prop 65 Label (Yes/No) | No |
| Gasket Sealant Included | No |
| Cylinder Bore Diameter | 4.640 |
| Engine Displacement | 396, 402, 427, 454, 502, 510, 540, 572 |
| Grade Type | Performance |
| Thickness (in.) | 0.046 |
| Part Type | Head Gasket |
| Product Notes | Fits Gen IV pass. car and H/P block; Pre-1971 blocks may require modification; Fits Gen IV truck and Bow Tie block; Fits Gen V block; Fits Gen VI block; One coolant hole per end; Three lower coolant holes; Minimal brinelling of aluminum heads |
| Part Terminology | Engine Cylinder Head Gasket |
