Brand New Pair of Southwest Speed Triple Process Chrome Plated Chassis Headers for 1955-1957 Chevy's with Small Block Chevy 262-400ci Engines & Unisteer Rack & Pinion (Part #440-2125). This Pair of Southwest Speed Small Block Chevy Chassis Headers are for use with Unisteer rack & pinion. They allow the steering shaft to pass through on the driver's side and are a shorty style for maximum ground clearance. Features 1-5/8" primaries with 3" collectors. Applications: 1955-1957 Bel Air 1957 Delray 1955-1957 Nomad 1955-1957 One-Fifty Series 1955-1957 Sedan Delivery 1955-1957 Two-Ten Series Fits Small Block Chevy 262, 265, 267, 283, 302, 307, 327, 350, 400 CID Engines with standard exhaust pattern Hot Rods, Rat Rods, Street Rods, & Nostalgia Rods running a 1955-1957 Chevy Engine Notes: Will not fit 168 tooth flywheels or kickout aftermarket starters. Will not fit manual transmission cars with factory Z bar clutch linkage. Features: 1-5/8" primaries to the 3" Collectors 3" to 2 1/4" reducers Fits 262-400 S/B Chevy V8s with straight plug heads Ideal for Engine Swaps Great for Hot Rods, Rat Rods, Street Rods, & any Nostalgia Rod More Performance Better Fuel Mileage Shorty style offers maximum ground clearance Enhances the look of any rod Includes gaskets and mounting hardware Triple Process Chrome Plated to resist early corrosion Header Specs: Material Type: Steel Header Tube Type: Chassis Tubing Thickness: 12 gauge (.103") Flange Thickness: .30" Exhaust Flange Thickness: .3760" Hardware Included: Yes Gaskets Included: Yes Tube Outside Diameter: 1 5/8" Collector Diameter: 3" Reducers: 3 to 2 1/4" Chrome Warning: Due to a revised chroming process brought on by recent EPA regulations and high labor costs, today's chrome is not the quality of days gone by. Be Aware: Exhaust components which are chrome plated are now much more susceptible to blueing, blistering, peeling & corrosion. We see very few headers that do not change color once exhaust temperatures are achieved. No warranty or returns on chrome exhaust items once they have been installed. Header Return Policy: In the event you order a header that will not fit your vehicle and application, you may return them for a refund, providing you don't damage the header. When you receive the header the finish will be protected and must remain unscratched for a refund. If you bend or dimple any of the tubes or scratch the finish, we will not be able to sell the header and will not be able to process a refund. Use care when trial fitting headers. Repack them well to prevent damage returning them to us. We won't process refunds for scratched, dimpled, dented, or bent headers.