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The Edelbrock #61559 Performer RPM Marine-Duty cylinder heads are designed for use with Rectangular Port Big-Block Chevy Marine applications. The Edelbrock #61559 Performer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. These cylinder heads deliver 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.
INSTALLATION NOTE: • 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
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 www.P65warnings.ca.gov.