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Duff’S Classic Ceramic Coated Headers Replaced By Ss Dominators, 1966-77 Bronco

James Duff Long Tube Headers for Classic Bronco

Duff’S Classic Ceramic Coated Headers Replaced By Ss Dominators, 1966-77 Bronco

SKU 3102 Categories Duffy's Original, Early Bronco, Early Bronco Engine, Early Bronco Exhaust, Exhaust, James Duff Suspension and Accessories, Not Eligible for Black Friday

Introducing the Duff’s Classic Ceramic Coated Headers for the 1966-77 Bronco, designed for optimal performance. These headers provide a robust solution for enhancing horsepower and torque, now succeeded by our SS Dominator Headers, #3140, which feature advanced improvements.

Product Description

Experience the engineering excellence of our one-piece construction headers, crafted in the USA. The equal length tubes are designed to maximize horsepower and torque while ensuring compatibility with various engine and transmission configurations.

Key design features:
– Starter removal possible without header removal
– Clearance for steering and clutch linkage
– Constructed from 16-gauge 1 1/2″ diameter tubing
– Smooth flow leading into 2 1/2″ final diameter collectors
– Follows the same routing as the stock exhaust system
– 3/8″ thick flange to enhance strength and prevent gasket blowout

Compatibility:
– Fits 289, 302/5.0, and 351W/5.8 engine conversions
– Suitable for C4, AOD automatics, and manual transmissions
– Custom intermediate pipes required for NV3550 or AX15 with new cross member

Important details:
– Not recommended for use with C6 transmissions due to fitment issues
– Incompatible with GT-40P heads

The Duffy’s Original design has evolved since its update in 2001 to better suit our #5350 Radius Arms. Each product includes hardware, premium gaskets, and detailed installation instructions.

Finish and durability:
– Inside and outside metallic ceramic coating
– Resists temperatures up to 1600° F
– Excellent rust, chip, and abrasion resistance
– Lower underhood temperatures
– Polished/aluminum appearance that does not blue

Recently introduced is the Black Cerakote option, offering higher heat resistance up to 2300° F and greater resilience than traditional ceramic coatings.

Legal considerations:
– Not compliant with Stage 8 header bolts
– Not legal for sale or use in California on vehicles with catalytic converters due to emission regulations

For installation instructions, access them [here](https://dufftuff.com/product/stainless-long-tube-headers-efi-compatible-1966-77-bronco/).

Features & Benefits:

One-piece construction
Equal length tubes for performance
Starter access without header removal
16-gauge tubing for flow efficiency
3/8″ thick flange for durability
Premium gaskets and hardware included
Available in Black Cerakote for enhanced thermal resistance

Technical Specs:

Engine compatibility: 289, 302/5.0, 351W/5.8
Tube diameter: 1 1/2″
Collector diameter: 2 1/2″
Max temperature tolerance: 1600° F (ceramic) / 2300° F (Black Cerakote)
Transmission compatibility: C4, AOD, manual; custom pipes required for NV3550/AX15

Resources:

here

Additional Information

Additional information

Weight	33 lbs
Dimensions	39 × 14 × 9 in
Coating	Silver Ceramic, Black Cerakote

Reviews

Thomas Butman – March 24, 2018
I really appreciate the courtesy call about shipping. Everyone was great to work with. Your descriptions of the products are perfect. Thank you!
Brian Seager – April 2, 2018
The headers look good and arrived in good condition. Installation wasnt to complicated. However the drop bracket on the equalizer bar hit the headers so i had to modify my clutch linkage. I am running a 351W and 3-speed manual transmission.
Clifford Harrelson – September 27, 2019
A great added look and upgrade that’s so beneficial. Easy install and built to last looks make these a “must have”. I added these along with a Duff’s dual exhaust system and just couldn’t be happier with the install and added performance. Highly recommend this.
Trent Bonnett – March 12, 2021
An amazing upgrade for Bronco. Great fit and amazing quality.

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Fast, Reliable Shipping

We ship your Bronco parts quickly and securely, ensuring your order arrives on time and ready for installation.

Trusted Since 1967

Nearly six decades of craftsmanship and innovation have made James Duff Inc. a leading name in Bronco performance.

Quality You Can Count On

Every component is designed, tested, and built for long-lasting durability—on the road and off.

Expert Support

Have questions? Our experienced team is here to help you choose the right parts for your Bronco.

James Duff Inc. specializes in precision-engineered suspension, steering, exhaust and off-road components built exclusively for 1966–1996 Ford Broncos.

Duff’S Classic Ceramic Coated Headers Replaced By Ss Dominators, 1966-77 Bronco

Duff’S Classic Ceramic Coated Headers Replaced By Ss Dominators, 1966-77 Bronco

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