This Kit Contains: (1) Intake Manifold Mounting Hardware As shown in the picture above Features: Product Type: Intake Manifold Material: Aluminum Finish: Satin Manifold Type: Single Plane Fuel System Type: ЕFI Front Height: 5.417 inch Rear Height: 5.417 inch Port Size: 2.50" H x 1.15" W Recommended Use: Forced Induction RPM Power Band: 2500-7000 RPM 4150 Square bore flange Fitment: GM LS1/LS2/LS6 Note: .