RPM Marine Big-Block Chevy Cylinder Head Hydraulic Flat Tappet Cam

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Edelbrock part #61559 Performer RPM Marine-Duty cylinder heads are designed for use with Rectangular Port Big-Block Chevy Marine applications.
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The Edelbrock #61559 Performer RPM Marine-Duty cylinder head is designed for use with Rectangular Port Big-Block Chevy Marine applications. The Edelbrock #61559 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. For use on pre-pollution controlled vehicles only.

Documents & Installation Notes



Manufacturer Edelbrock
Application Application Specific
UPC 00085347615599
Series Performer RPM
Grade Type Performance
Quantity Sold Individually
Guide Plate Material Hardened Steel
Horsepower 500-600 HP
Availability Note Available to Order
Warranty 12 Months
Seat Angle Exhaust 45 deg/Intake 45 deg
Emissions Code
Hazardous Materials Warning WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • 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; Sold with valves only to allow for valve spring choices; 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
Intake Valve Diameter 2.25 in
Intake Runner Volume 315 cc
Material Aluminum
Push Rod Diameter (Suggested) 0.375 in
Rocker Stud Diameter 0.437 in
Valve Angle 26 deg
Valve Spring Diameter 1.500 in
Valve Spring Maximum Lift 0.650 in
Valve Stem Diameter 0.3438 in