BBC Oval Port "PowerGap" Raised Runner Intake Manifold, Machine Polished 

Big Block Chevy Oval Port "PowerGap" Raised Runner Intake Manifold, Semi-Polished

• RPM Range: 1500-6500
• Engine Make/Size: Chevy Big Block (396-502)
• Number Of Carbs: One
• Emission: N/A
• Cylinder Head Type: Oval Port- Large

PowerGap "HP" series Oval port intake for 454 Marine based engines. This is a great performance upgrade to standard Dual Plane intake manifolds for your 454 Big Block Oval port cylinder head application, Power range is between 15000 rpms to 6500 rpms. This manifold features raised runner plenum area that allows air to pass under the intake plenum which reduces engine heat transfer producing a cooler denser intake air/fuel charge resulting in a increase in power and torque output. Features include dual distributor hold downs.

RPM Range: 1500 to 6500

• Crosswind Intake Manifold
• 1500-6500 RPM Range
• Oval Ports
• Machine Polished Finish (Brighter than satin, but not fully polished)
• Air Gap Design
• Allows Ambient Air To Pass Beneath The Plenum
• Additional Cooling To The Intake Charge
• Four Corner Water Ports
• Dual Distributor Holddowns