Edelbrock Cylinder Head Race Victor Jr Complete Chevy Gen V LT1/LT4

Edelbrock has been a name in performance parts for a long time, known for making well-built components that help you get more out of your engine. This Victor Jr. cylinder head, part number 77139, is a prime example, specifically built for GM Gen V LT1 and LT4 racing engines. If you're looking to build an ultra high-performance engine for the track, this head is designed to help you achieve those goals.

What sets this head apart is the attention to airflow. The exhaust ports have been moved 1.5 inches horizontally to improve how air moves through the engine, though this does mean you'll need custom exhaust manifolds and headers to match. Edelbrock also designed the intake and exhaust ports for high flow, and they've even back-cut the intake valves to help them breathe better. The valve position was revised to fit larger valves, with the intake valve now at 2.20 inches and the exhaust at 1.60 inches. The deck is thicker, and there's more material in the port and wall areas, which adds strength and durability, and also gives you more room for porting or milling if you want to fine-tune it further. Everything from the intake ports to the combustion chambers and exhaust ports is fully CNC machined for maximum performance.

Even with these advanced features, the Victor Jr. head keeps the stock rocker arm, intake port, and spark plug locations. This means it's designed to work with your factory components, simplifying the integration into your build. These heads are cast from 356 aluminum and heat-treated to T-6 specifications right in Edelbrock's Southern California facilities, ensuring you're getting a solid part from a trusted name.