RPC spread bore/square bore dual plane intake manifolds add performance, improved throttle response and increased torque to your big block Chevy 396, 402, 427 and 454 V8 engines. Made out of high quality cast aluminum and available in satin, polished and black finishes. The spread bore/square bore flange accepts most non-EGR 4-bbl carburetors on the market.
- Fits Big Block Chevy 396-454 Engines
- Idle-5,500 RPM Range
- 4-BBL Spread Bore OR Square Bore Non-EGR Carburetor Flange
- Dual Plane Plenum
- 4 Corner Water Ports
- Dual Distributor Hold Downs
- Direct Port Nitrous Bosses
- Includes Square Bore Adapter & Gasket
- Includes Choke Plate, Gasket & Hardware
- HOOD CLEARANCE MODIFICATION REQUIRED FOR CORVETTE APPLICATIONS
- INTAKE MANIFOLD GASKETS, MOUNTING HARDWARE, FITTINGS AND WATER NECK SOLD SEPARATELY
- Intake Manifold Bolt Kit: R7531S
- Water Neck: Big Block Chevy
This product is legal for off road use and non pollution controlled vehicles (1965 & older); however, it has not been tested or approved by the California Air Resources Board (CARB) for highway vehicles in the state of California. By purchasing this product, buyer agrees it will not be used on pollution controlled vehicles in California, or in a state with similar emissions regulations.
WARNING: Cancer and Reproductive Harm – www.P65warnings.ca.gov
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