3V Performance Custom Flatout; LS; 4.155 Bore; 0.070 Thick; Copper; Head Gasket Pair 9140704155

The 3V Performance Custom Flatout 9140704155 head gasket pair features rubber-coated copper construction for Dart LS Next engine applications. A copper core with Flatout’s proprietary RCC coating provides a sealing solution for performance engine builds.

This pair includes application-specific left- and right-hand gaskets with coolant passages, a 4.155" gasket bore, and .060" thickness.

Specifications:

• Part Number: 9140704155

• Application: LS-based Dart LS Next engines

• Gasket Bore: 4.155"

• Thickness: .070"

• Material: RCC rubber-coated copper

• Head Fastener Sizes: 1/2" and 3/8"

• Quantity: Pair—one left and one right gasket

Verify block, cylinder head, fastener, and gasket bore compatibility before ordering. Follow Flatout’s installation requirements for surface preparation and combustion sealing.