Beyea Custom Headers IDM602-NSM-D2 SBC Modified Header 1-5/8" 602 Crate

The Beyea Custom Headers IDM602-NSM-D2 is a precision-engineered racing header designed specifically for small block Chevrolet 602 crate engines in dirt modified racing applications. This header features 1-5/8" primary tubes optimized for the power characteristics of the restricted 602 crate motor.

Key Features:

• 1-5/8 inch primary tube diameter for optimal exhaust flow
• Engineered specifically for 602 GM crate engine specifications
• Designed for dirt modified chassis applications
• Mandrel-bent tubing for smooth exhaust flow and maximum performance
• Heavy-duty construction to withstand racing conditions
• NSM configuration for proper fitment in modified chassis

Beyea Custom Headers specializes in racing exhaust systems, manufacturing headers that meet the demanding requirements of short track racing. This header is designed to maximize the limited power output allowed under 602 crate engine rules while ensuring proper fit in modified race car chassis. The carefully calculated tube diameter and length work within the constraints of sealed crate motor specifications to extract maximum performance.