BBC Intake Manifold - 10.200 O/P 4150 Flange

The DART BBC Intake Manifold — 10.200 O/P 4150 Flange is a single-plane, square-bore aluminum manifold engineered for big block Chevy engines demanding optimized airflow and responsive throttle characteristics. This natural-finish casting combines DART's proven manufacturing precision with a design that prioritizes mid-range torque delivery and consistent performance across varied engine speeds.

The oval-port configuration and single-plane design work together to minimize charge distribution issues inherent in dual-plane manifolds, making this unit ideal for engines tuned for broad powerband response rather than extreme RPM peaks. The 4150 flange pattern ensures compatibility with standard carburetor mounting and a wide range of fuel delivery systems. At 30.3 lbs, the aluminum construction reduces overall engine weight compared to cast-iron alternatives while maintaining the thermal characteristics necessary for consistent fuel atomization and combustion efficiency.

This manifold suits builders prioritizing street-to-strip versatility in big block applications. Whether supporting naturally aspirated performance or serving as a foundation for forced-induction upgrades, the single-plane layout supports repeatability and tuning predictability. The natural aluminum finish provides a clean baseline for anodizing, powder coating, or polishing finishes based on build aesthetics and underhood environment requirements.

DART intake manifolds are recognized for dimensional accuracy and consistent port-to-runner transitions that minimize turbulence and velocity loss. This precision engineering supports accurate carburetor tuning and helps maintain target air-fuel ratios across load conditions, critical for fuel economy and emissions control in street-driven big block engines.