Edelbrock Cylinder Head Performer RPM Chevy Gen V LT1/LT4

Edelbrock has been a trusted name in performance parts for a long time, known for their commitment to quality and power. This Performer RPM cylinder head, part number 77119, is a prime example of that dedication, offering a significant performance upgrade for your stock GM Gen V LT1 engine. It’s designed specifically for street applications where you want more power without sacrificing reliability.

What sets these heads apart is the attention to detail in their construction. They feature a thicker deck, measuring 3/4 inch, which adds stability and durability. Edelbrock also put more material into the intake, exhaust, and port walls, making them stronger and more resistant to wear. The CNC machining on the combustion chambers, valve seats, and ports ensures incredible consistency from one head to the next, which translates directly to better performance. You'll also notice improved airflow thanks to the high-flow intake and exhaust ports, along with back-cut intake valves. Even the valve position was revised to accommodate larger valves and interlocking seat rings, all while keeping the stock rocker arm, intake/exhaust ports, and spark plug location so you can use your factory components.

These heads are cast from 356 aluminum and heat-treated to T-6 specifications right in Edelbrock's Southern California facilities. This ensures you're getting a well-built product from a name you can trust. With a 58cc combustion chamber volume, 305cc intake runners, and 115cc exhaust runners, these heads are ready to help your LT1 breathe easier and make more power. The intake valves measure 2.165 inches and the exhaust valves are 1.600 inches, allowing for increased flow capacity.