Holley 300-269BK Single Plane Intake Manifold - Black

Single Plane EFI LS Intake Manifold. Fits all GM LS Gen III engines equipped with LS7 cylinder heads-Black Finish Designed with a 4150 Square bore flange. Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM . Minimum carb flange height - fit in vehicles with minimum hood modifications. Cast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS power adder applications. The manifold kit includes the fuel rails, mounting hardware, and o-ring cylinder head mounting flange gaskets. Features: 2500-7000 RPM power band 4150 Square bore flange Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM Minimum carb flange height - fit in vehicles with minimum hood modifications Cast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS mild power adder applications Efficient casting design - lightweight, consistent wall thicknesses, improved casting quality Weight - 11.5 lbs. Height (front) - 5.417" to the lifter valley cover flange at the engine block front flange and bellhousing flange Port size - 2.33" height x 1.27" wide Includes FKM o-ring intake to cylinder head gaskets