Edelbrock Performer RPM Rectangle Port Cylinder Head for Big-Block Chevy 396-502 with Hydraulic Roller Cam

The Edelbrock #60555 Performer RPM Rectangle Port cylinder head is designed for Big-Block Chevy applications. The Edelbrock #60555 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 2500 to 7000 rpm. They also feature the highest quality intake and exhaust valves and valve springs. For use on pre-pollution controlled vehicles only. The Edelbrock #60555 Performer RPM Rectangle Port cylinder heads are designed for Big-Block Chevy applications. The #60555 Performer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where. Chevrolet:Big-Block Mark IV:396 (6.6L)/402 (6.6L)/427 (7.0L)/454 (7.4L)/502 (8.2L)

• Smaller-Than-Stock 11/32 in. Valve Stems Promote Excellent Flow

The Edelbrock Performer RPM Rectangle Port Cylinder Head (Part Number 60555) is specifically engineered for Big-Block Chevy applications, offering exceptional performance for street-driven vehicles, daily drivers, street rods, and muscle cars. Designed to deliver robust throttle response and increased power output from 2,500 to 7,000 RPM, this head enhances your engine's efficiency and responsiveness. Constructed with high-quality intake and exhaust valves along with sturdy valve springs, it ensures durability and consistent performance under demanding driving conditions. Compatible with Chevrolet Big-Block Mark IV engines ranging from 396 to 502 cubic inches, this cylinder head is ideal for enthusiasts seeking reliable, high-performance upgrades for their vehicles. The smaller-than-stock 11/32 inch valve stems promote improved airflow, contributing to better engine breathing and power gains. Note that this product is intended for use on pre-pollution controlled vehicles only and requires carb acknowledgment during installation. The Edelbrock #60555 Performer RPM Rectangle Port head is not CARB approved, emphasizing its focus on performance applications rather than emissions compliance. Its precise design and quality manufacturing make it an excellent choice for those looking to maximize their Big-Block Chevy engine's potential without compromising daily drivability or street performance.

Features:

• Designed for Big-Block Chevy Mark IV engines from 396 to 502 cubic inches

• Optimized for street performance, daily driving, and muscle cars

• Provides excellent throttle response and power from 2,500 to 7,000 RPM

• Constructed with high-quality intake and exhaust valves and valve springs

• Smaller-than-stock 11/32 inch valve stems enhance airflow and performance

• Compatible with hydraulic roller cam setups

• Intended for pre-pollution controlled vehicles only

• Requires carb acknowledgment during installation