The QP1000 cast iron "Quiet Performer" header overcomes limitations of tube-style 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 Tri-5 vehicles using the Saginaw 605.
Our 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 HO (High Output) cylinder heads. The result is exhaust headers that create more torque and power at every RPM range.
There are other benefits to our 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 55-57 Chevy applications!
NOTE: Does not fit Vortec cylinder heads.
Comes with all hardware necessary for installation.
Engine : Small Block Chevy 265-400
Primary Tube Diameter : 1½"
Collector Diameter : 2½"
Weight : 23 LBS / 10.43 KGS
- D-Port Design with Cast-In Anti-Reversion Baffling
- Premium Casting Materials
- Thick Flange Area for Optimum Sealing
- Tightest Fitting Header Available Anywhere!
- Made in the USA
- Header Bolt Set
- Collector Reducer Set
Our Aluminized Ceramic Coating is available and RECOMMENDED on all Sanderson Headers. We apply a multi-layer inside and outside silver ceramic coating in-house to meet our high standards of quality, and polish the coated header to a high luster. This coating provides aerospace and military technology to your vehicle to control the heat in your engine bay, improve cylinder scavenging of exhaust gases, and increase the longevity of your header investment. (read more here)