Edelbrock 61555 - Cylinder Head, Chevrolet 396-454-M, Rectangular, Marine RPM, 118cc, Hydraulic Roller

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  • EDL-61555
  • Performer RPM Marine-Duty cylinder heads are designed for use with Rectangular Port Big-Block Chevy Marine applications
The Edelbrock Performer RPM Marine-Duty cylinder head is designed for use with Rectangular Port... more
Edelbrock 61555 - Cylinder Head, Chevrolet 396-454-M, Rectangular, Marine RPM, 118cc, Hydraulic Roller

The Edelbrock Performer RPM Marine-Duty cylinder head is designed for use with Rectangular Port Big-Block Chevy Marine applications. The Edelbrock #61555 Performer RPM head is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. This cylinder head delivers great throttle response and power from 1500 to 6500 rpm. They also feature the highest quality intake and exhaust valves and valve springs. 

Car/Engine: Chevrolet Big Block
Port Volume Intake / Exh: 315cc/ 110cc
Serie: Performer RPM
Engine Notes: 396-454 cui , 454-R Marine
HP Range: 500-600
Intake Flange Style: Rectangular
Exhaust Port Location: Standard
Chamber Volume: 118cc
Valve Sizes Intake / Exh: 2.25'' / 1.89''
Camshaft Type: Hydraulic Roller
Max. Lift: 0.650''
Valve Spring Diameter: 1.50''
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Installation Notes
    • Equipped with springs for use in hydraulic roller camshaft applications.
    • Match with Edelbrock head gasket sets.
    • Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.
    • All Performer and Performer RPM B/B Chevy heads have spark plugs relocated closer to center of bore which will interfere with high-dome pistons for open chamber heads.
    • Heavy-duty, 1.89" Inconel exhaust valves provide added durability for marine applications
    • Hard anodized black to protect the aluminum cylinder heads in the harsh marine environment
    • Match with an Edelbrock Performer RPM manifold, Performer Series 750 cfm marine carb and Performer RPM cam for proven performance
    • Smaller-than-stock 11/32" valve stems promote excellent flow and lighter valve weight
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