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Exhaust› Headers, Manifolds and Components

Patriot Exhaust

1-5/8" Long Tube Headers Rectangular Port

$707.81 $579.11 Save $128.70

SKU: H8403-1

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Hooker H8403-1 is a set of long tube headers designed for 1964-1973 Ford Mustang Small Block applications. These headers feature 1 5/8-inch primary tubing with a rectangular port shape and a 3-inch collector port diameter. They are constructed from 18-gauge steel and finished with a metallic ceramic coating for durability and heat resistance.
Show original supplier description
The Hooker H8403-1 long tube headers are engineered to enhance the performance of 1964-1973 Ford Mustang Small Block engines. The primary tubing diameter is 1.625 inches, with a rectangular port shape and a 3-inch collector port diameter, all constructed from robust 18-gauge steel. Featuring a metallic ceramic coating, these headers create a thermal barrier that significantly lowers under-hood temperatures, protecting the substrate metal from thermal fatigue. The coating is then polished to a high-luster aluminum appearance, resulting in a surface that is harder and 60% more corrosion resistant than unpolished surfaces. Gaskets and mounting hardware are included for installation. They are compatible with various transmissions including C6, T5 (cable, hydraulic, or stock Z bar clutch actuation), but will NOT fit with AOD transmissions. For power steering equipped cars, bracket H7609 is required. It is important to note that these headers will not fit GT40 "P" heads. The applications are based on original engine and cylinder head port centerlines; raised port cylinder heads may cause installation issues.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandPatriot Exhaust
Part NumberH8403-1
CategoryExhaust
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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