Tri -Y DLM Long Primary 1-3/4 -1-7/8 18 Deg

The Tri -Y DLM Long Primary 1-3/4 -1-7/8 18 Deg is a precision-engineered exhaust solution designed specifically for the rigorous demands of Dirt Late Model racing. This header system utilizes a Tri-Y (4-2-1) configuration to maximize torque across a broad power band, which is essential for maintaining momentum on varying track conditions.

By optimizing exhaust gas scavenging, these headers allow racers to achieve better throttle response and more consistent corner exits. Constructed from durable steel with a black paint finish, the Tri -Y DLM Long Primary features stepped primary tubes that transition from 1.75 inches to 1.875 inches. This stepped design maintains high exhaust velocity near the port while providing the necessary volume for high-RPM flow.

Engine builders and mechanics will find the Tri -Y DLM Long Primary highly effective for competitive Dirt Late Model builds requiring specific 18-degree port geometry. The 18-degree flange alignment is critical for port matching, preventing turbulence and maximizing the volumetric efficiency. This kit provides a complete bolt-on solution for Small Block Chevy engines equipped with 18-degree cylinder heads.