The QP1000 cast iron Quiet Performer header overcomes limitations of tube type headers in both fit and in its ability to produce gains in both low end torque and high end horsepower. The QP1000 provides excellent steering clearance even for 1955-57 Chevy vehicles using the Saginaw 605.
This Cast Series header incorporates individual runners to separate exhaust pulses with cast anti reversion baffling to prevent spent gasses from being drawn back into the cylinder during valve timing overlap, when both intake and exhaust valves are open. Scavenging of the cylinders is significantly improved by our D-Shaped technology, first used by GM on their High Output cylinder heads. The result is exhaust headers that create more torque and power at every RPM range.
There are other benefits to these Cast Series header. Because they are more compact than tubular headers, they provide more clearance for steering, accessories, and other chassis and engine components. They weigh less than factory exhaust, and they look a whole lot better! This is the most popular header for small block 1955-57 Chevy applications!
Please Note: Does not fit Vortec cylinder heads.
Comes with all hardware necessary for installation.
Features and Specifications:
- Engine: Chevy 265-400 V8
- Finish:Plain Steel
- Primary Tube Diameter: 1-1/2"
- Collector Diameter: 2-1/2"
- Tube Thickness: 16 Gauge
- Flange Thickness: 3/8"
- Header Gasket: Not needed
- Header Bolt Set: Included
- Collector Reducer: Included
- Made in the USA
Vehicle Applications:
- 1927-48 Cars and Trucks
- 1949-54 Chevy Cars and Trucks
- 1968-74 Chevy Nova
- 1958-64 Chevy Full Size Cars
- 1965-67 Chevy Full Size Cars
- 1967-69 Chevy Camaro
- 1967-69 Pontiac Firebird
- 1948-52 Ford Trucks
- 1953-66 Ford Trucks
- 1955-82 Chevy Corvette
