Engine Cylinder HeadThe Edelbrock #60549 Performer RPM Bare Rectangle Port cylinder head is designed for Big Block Chevy applications. The Edelbrock #60547 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

Features a high strength 4140 Chrome Moly heat treated solid adjuster

These Edelbrock Performer Series cylinder head is 50-state street legal and provide outstanding performance from Idle-5

Installation Is Simple And It Can Keep You From Being Stranded On The Water

The large size is recommended for 14in and 10in air cleaner kits

thereby preventing the inner tie rods from breaking or bending

and feature a fine-tuned spring rate (150 lb/in front

UMI Performance

making it highly recommended for use in forced induction applications

QA1 springs are strong

Chevrolet Mark-IV

2740 STEMS

BMRs Front Sway Bar Kit (SB331) increases sway bar rate and is designed for street performance