Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing Ford truck headers decades. 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 exhaust system to bolt up to these Ford 351M/400 headers, even if it is not perfectly aligned with the header collectors.
These HTC coated, LONG-TUBE, fenderwell-exit headers fit 1977-79 Ford 1/2, 3/4 and 1 ton, 4WD Trucks and Broncos with a 351m or 400 engine. The long, smooth-flowing 1-5/8 in. tube design provides great exhaust flow to let your Ford truck or Bronco's 351M of 400 engine breathe easy, and produce loads of torque. They fit both automatic and manual transmission vehicles.
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_ASM |
1978-1979 Ford Bronco Custom CID 351 Naturally Aspirated GAS, 1978-1979 Ford Bronco Custom CID 400 Naturally Aspirated GAS, 1977-1978 Ford F-100 Base CID 351 Naturally Aspirated GAS, 1977-1978 Ford F-100 Base CID 400 Naturally Aspirated GAS, 1979 Ford F-100 Custom CID 351 Naturally Aspirated GAS, 1979 Ford F-100 Custom CID 400 Naturally Aspirated GAS, 1977-1978 Ford F-150 Base CID 351 Naturally Aspirated GAS, 1977-1978 Ford F-150 Base CID 400 Naturally Aspirated GAS, 1979 Ford F-150 Custom CID 351 Naturally Aspirated GAS, 1979 Ford F-150 Custom CID 400 Naturally Aspirated GAS, 1977-1978 Ford F-250 Base CID 351 Naturally Aspirated GAS, 1977-1978 Ford F-250 Base CID 400 Naturally Aspirated GAS, 1979 Ford F-250 Custom CID 351 Naturally Aspirated GAS, 1979 Ford F-250 Custom CID 400 Naturally Aspirated GAS, 1977-1978 Ford F-350 Base CID 351 Naturally Aspirated GAS, 1977-1978 Ford F-350 Base CID 400 Naturally Aspirated GAS, 1979 Ford F-350 Custom CID 351 Naturally Aspirated GAS, 1979 Ford F-350 Custom CID 400 Naturally Aspirated GAS |
| Description_DES |
HTC Coated Headers; 1-5/8 in. Tube Dia; FULL LENGTH Design |
| Description_DEF |
Exhaust Header |
| Description_FAB |
Handcrafted, Mild Steel Construction. |
| Description_FAB |
Long Tube Header Design Provides Excellent Top-End Horsepower and Torque. |
| Description_FAB |
Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors |
| Description_FAB |
Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters) |
| Description_FAB |
Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating! |
| Description_FAB |
Proud To Say, Made In The USA, Since 1954! |
| Description_INV |
HEDMAN FORD TRUCK HEADERS-SILVER |
| Description_EXT |
HTC Coated Headers; 1-5/8 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design |
| Description_MKT |
Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing Ford truck headers decades. 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 exhaust system to bolt up to these Ford 351M/400 headers, even if it is not perfectly aligned with the header collectors.
These HTC coated, LONG-TUBE, fenderwell-exit headers fit 1977-79 Ford 1/2, 3/4 and 1 ton, 4WD Trucks and Broncos with a 351m or 400 engine. The long, smooth-flowing 1-5/8 in. tube design provides great exhaust flow to let your Ford truck or Bronco's 351M of 400 engine breathe easy, and produce loads of torque. They fit both automatic and manual transmission vehicles.
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.
|
| Description_SHO |
HEADERS, COATED |
| Air Conditioning |
Yes |
| Automatic Transmission - Column |
Yes |
| Automatic Transmission - Floor |
Yes |
| Bolts/Studs Included |
Yes |
| California Proposition 65 |
WARNING: Cancer & Reproductive Harm. For more info visit www.P65Warnings.ca.gov |
| Catalytic Converter(s) Included |
No |
| Collector Attachment |
3 in. |
| Collector Bolts Included |
Yes |
| Collector Diameter |
3 in. |
| Collector Size |
3 in. |
| Collector Style |
BALL and SOCKET Style (Gasketless) |
| Contents |
headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware |
| Crossover Pipe Included |
No |
| Cylinder Head |
Stock Profile Heads |
| Cylinder Head Port Shape |
Oval |
| E.O. # |
No |
| Emissions Notes |
Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only. |
| Engine Version |
Ford Modified Block (M) |
| Exhaust System Dia |
2-1/2 in. |
| Finish |
HTC Polished Silver Ceramic-Metallic |
| Finish Type |
HTC SILVER (polished) Ceramic-metallic Coating |
| Flange Style |
Standard |
| Flange Thickness |
0.3125 in. |
| Gasket Or Seal Included |
Yes |
| Header Construction |
MILD STEEL- Standard-Duty |
| Header Fasteners Included |
Yes |
| Header Finish |
HTC Polished Silver Ceramic-Metallic |
| Header Material |
Mild Steel |
| Header Port Shape |
Oval Port |
| Header Style |
Long Tube- Fenderwell Exit |
| Installation Hardware Included |
Yes |
| Key Feature |
Fenderwell Exit |
| Manual Transmission - Column |
Yes |
| Manual Transmission - Floor |
Yes |
| Material |
Mild Steel |
| Motor Mounts Included |
No |
| Mounting Hardware Included |
Yes |
| Notes |
77-79 Ford F150, F250, F350, Bronco; 4WD 351-400M |
| Package Contents |
Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
| Port Shape |
Oval |
| Power Steering |
Yes |
| Primary Tube Diameter (in) |
1.625 in. |
| Primary Tube Gauge |
16g |
| Quantity |
Sold as a pair. |
| Reducer Outlet Size |
2-1/2 in. |
| Footnotes |
41. Fenderwell Exit |
| Reducers Included |
Yes |
| Replacement Gasket |
27720 |
| Replacement Head Flange Gasket |
27720 |
| Title |
HEDMAN HEDDERS FENDERWELL HEADERS FOR 1977-1979 4WD FORD BRONCO OR F1350, F250 OR F350 TRUCK; 351M OR 400M V8; 1-5/8 IN. LONG TUBE, 3 IN. BALL COLLECTOR- HTC COATED MILD STEEL |
| Tube Design |
Standard |
| Tube Diameter |
1-5/8 in. |
| Tube Length |
Long Tubes |
| Tube Material Thickness |
16g |
| Tube Size |
1-5/8 in. |
| Tube Style |
Long Tubes |
| Tuned |
No |
| Variations |
89360, 89368 |
| Weld-Up |
No |
| with A.I.R. System |
No |
| with EGR |
No |
| Y-Pipe Included |
No |
| Length |
10.0000 |
| Width |
18.0000 |
| Height |
46.0000 |
| Weight |
36.0000 |
