Cummins Stage 3 & 4 High Performance

Elevate your Cummins engine to unprecedented levels of high performance with our Stage 3 and Stage 4 Cummins Performance Heads. The Stage 3 variant builds upon the Stage 2 foundation, introducing a D&J Stage 3 Billet Intake Manifold, oversized super alloy intake and exhaust valves, titanium valve spring retainers, and heavy-duty extra-large intake seats. This head is compatible only with a 6.7l (4.212 inch) bore or larger, addressing issues seen in high-power trucks, such as stock intake seats falling out and soft plugs dislodging.

For those seeking the pinnacle of performance, our Stage 4 Cummins Performance Head takes it even further. Featuring a D&J Stage 4 Billet Runner style intake manifold, this head, designed for a 6.7l (4.212 inch) bore or larger, includes oversized super alloy valves, titanium valve spring retainers, and thread-in soft plugs. The Stage 4 billet intake runner is hailed as the best in the market, boasting reusable o-ring seals for equal flow to all cylinders, resulting in remarkably consistent EGTs across the board.

Experience unparalleled high-performance engineering with our Stage 3 and Stage 4 Cummins Performance Heads.