Hedman Hedders has been manufacturing quality headers in the USA since 1954, and classic musclecars is their specialty. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your Big Block Chrylser's exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
These HTC Coated, MID-LENGTH TUBE headers fit a variety of 1967-1974 MOPAR passenger cars powered by a Chrysler 361-440 B/RB engine. Included in this list of popular models are 1970-74 Dodge Challenger and Plymouth Barracuda, '66-74 Dodge Charger, '68-74 Plymouth Roadrunner and '67-70 Belvedere (check the application listings for exact fitment). These headers fit both manual and automatic transmission models, however, the use of a mini-starter is required. The smooth 1-3/4 in. tube design provides excellent exhaust flow to let your Chrysler 361-440 (wedge-style) engine breathe freely to produce more low-end horsepower and torque.
Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.
Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty. These headers have a high temperature, POLISHED-SILVER ceramic finish that resists corrosion, and can withstand temperatures up to 1400 degree F. This finish is covered by a 5 year factory warranty, in addition to Hedman's standard lifetime header warranty.
Specifications:
| Description_DEF |
[B@57796657 |
| Description_DES |
[B@1a013657 |
| Description_EXT |
[B@2cdf69bf |
| Description_FAB |
[B@128cac07 |
| Description_FAB |
[B@edb3bdf |
| Description_FAB |
[B@1d7b07dd |
| Description_FAB |
[B@4abe075c |
| Description_FAB |
[B@3d257698 |
| Description_FAB |
[B@6af7b720 |
| Description_INV |
[B@2f77004c |
| Description_MKT |
[B@15496619 |
| Description_SHO |
[B@3ce539e |
| Title |
HEDMAN HEDDERS HTC COATED HEADERS; 1-3/4 IN. TUBE DIA.; 2-1/2 IN. COLL.; MID-LENGTH DESIGN |
| Material |
Mild Steel |
| Tube Design |
Standard |
| Tube Diameter |
1-3/4 in. |
| Mounting Hardware Included |
Yes |
| with A.I.R. System |
No |
| with EGR |
No |
| Weld-Up |
No |
| Tuned |
No |
| Bolts/Studs Included |
Yes |
| Catalytic Converter(s) Included |
No |
| Collector Bolts Included |
Yes |
| Crossover Pipe Included |
No |
| Gasket Or Seal Included |
Yes |
| Header Fasteners Included |
Yes |
| Installation Hardware Included |
Yes |
| Motor Mounts Included |
No |
| Reducers Included |
Yes |
| Tube Size |
1-3/4 in. |
| Y-Pipe Included |
No |
| Quantity |
Sold as a pair. |
| Primary Tube Gauge |
16g |
| Primary Tube Diameter (in) |
1.75 in. |
| Package Contents |
Headers, reducers (exhaust adapters), gaskets, mounting hardware |
| Header Material |
Mild Steel |
| Header Finish |
HTC Polished Silver Ceramic-Metallic |
| Cylinder Head Port Shape |
Square |
| Cylinder Head |
Stock Profile Heads |
| Header Construction |
MILD STEEL- Standard-Duty |
| Replacement Gasket |
27900 |
| Replacement Head Flange Gasket |
27900 |
| California Proposition 65 |
WARNING: Cancer & Reproductive Harm. For more info visit www.P65Warnings.ca.gov |
| Variations |
78070 |
| Tube Material Thickness |
16g |
| Tube Style |
Mid-Length |
| Air Conditioning |
Yes |
| Automatic Transmission - Column |
Yes |
| Automatic Transmission - Floor |
Yes |
| Manual Transmission - Column |
Yes |
| Manual Transmission - Floor |
Yes |
| Tube Length |
Mid-Length Tubes |
| Flange Thickness |
0.3125 in. |
| Collector Attachment |
2-1/2 in. |
| Collector Diameter |
2-1/2 in. |
| Collector Size |
2-1/2 in. |
| Exhaust System Dia |
2-1/2 in. |
| Reducer Outlet Size |
2-1/2 in. |
| Collector Style |
3-Bolt Gasket Style Flange |
| Notes |
66-74 Various Mopar Cars; 361-440 |
| Engine Notes |
Chrysler B/RB 361-440 |
| Engine |
Chrysler B/RB; 361-440 |
| Contents |
headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware |
| Finish |
HTC Polished Silver Ceramic-Metallic |
| Finish Type |
HTC SILVER (polished) Ceramic-metallic Coating |
| Header Style |
Mid-Length Tube |
| E.O. # |
No |
| Emissions Notes |
Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only. |
| Header Port Shape |
Square |
| Port Shape |
Square |
| Flange Style |
Standard |
| Power Steering |
Yes |
