Hedman Hedders 89140 Long Tube Exhaust Headers 1-3/4" Primary Tubes 3" Collectors

Hedman Hedders 89140 long tube headers are engineered specifically for 1974-1979 Ford F-Series trucks equipped with 429-460 cubic inch Big Block engines. These full-length headers deliver significant performance improvements over restrictive factory exhaust manifolds, allowing your engine to breathe freely and produce maximum horsepower and torque.

Key Features:

• 1-3/4 inch primary tube diameter for optimal exhaust flow on Big Block Ford 385 series engines
• 3 inch ball and socket collector design eliminates the need for collector gaskets and allows installation even when exhaust alignment is not perfect
• CNC mandrel bent mild steel tubing ensures smooth exhaust flow and consistent fit
• Hand-welded construction guarantees each pair is identical with no fit variations
• CARB E.O. number D167-27 certified - 50-state legal on 1975-1979 emissions-controlled models without A.I.R. system
• 0.375 inch thick exhaust flanges for superior sealing and durability
• 2-1/2 inch reducer outlet size for easy connection to standard exhaust systems

What's Included:

• Pair of exhaust headers (left and right)
• Exhaust gaskets
• Ball and socket reducers (exhaust adapters)
• Header flange bolts and collector mounting hardware

These headers are constructed from uncoated mild steel and ship with temporary black paint that will burn off during initial operation. They are compatible with both manual and automatic transmissions on 2WD models only. Please note: These headers will not fit Camper Special models, 4x4 trucks, or vehicles equipped with front sway bars. Modification to stock exhaust may be required to retain catalytic converters. Manufactured in the USA by Hedman Hedders since 1954.