Edelbrock 7158 - Performer RPM Manifold, Chevrolet 348/409 "W" Big Block, Small Port
Edelbrock Part # 7158 Performer RPM small port intake manifold is designed to fit 1958-1965 Chevrolet 348/409 "W" big-block engines. Includes Oil Fill Tube (not installed) and matching push-in breather cap. The Oil Fill Tube and Breather are also available separately as #4803. For square-bore carburetors only.
Recommended intake gasket: Edelbrock # 7242 or Fel-Pro MS9459B
Port exit dimensions: 2.06" x 1.16"
Manifold Dimensions: A-4.35", B-5.54"
Carburetor pad height: 4.62"
Carburetor recommendations: Edelbrock AVS2 or Performer Series 600-800 cfm.
Carburetor size (CFM) should be selected based on your specific engine combination.
Use RTV sealant to properly seal end seals, such as Edelbrock High Temp Silicone sealant # 1076, DO NOT USE END SEALS GASKETS.
Hardened washers Must be used with intake bolts to ensure proper torque and prevent galling of the aluminum.
Sealant must be used on intake bolt threads if the threads extend into lifter valley or coolant passage.
NPT/Pipe thread fittings require the use of Teflon tape or paste on threads to ensure a proper seal.
DO NOT OVERTIGHTEN NPT/Pipe fittings, this may cause the aluminum to crack around the fitting boss. NPT/Pipe thread is a tapered thread.
To ensure maximum performance and a proper seal, Edelbrock gaskets which are specifically designed and manufactured for use with Edelbrock parts must be used.
Proper installation is the responsibility of the installer. Improper installation will void your warranty and may result in poor performance and engine or vehicle damage.
