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. These headers use Hedman's patented TIGHT TUBES chamshell-style collector that allows for a low-profile header design, while still providing beneficial exhaust flow improvement over factory manifolds.
These uncoated, TIGHT-TUBES headers fit a variety of 1967-1974 MOPAR passenger cars powered by Chrysler'S 273-360 LA engine (inline port port pattern only). Included in this list of popular models are 1970-74 Dodge Challenger, '67-74 Plymouth Barracuda, '66-74 Dodge Charger, '68-74 Plymouth Roadrunner 67-76 Dart, Duster, Super Bee and Valiant (check the application listings for exact fitment). The flat-style collector also makes these headers ideal for SB Chrysler equipped street rods and custom projects. These headers fit both manual and automatic transmission models, however, a mini-starter must be used, and modification to the shift linkage may be required. The smooth 1-5/8 in. tubes flow into the large, yet flat, collector, and provide improved exhaust flow, over factory manifolds, to let your Chrysler 273-360 (LA) engine produce additional horsepower and torque.
These headers are uncoated, and ship from the factory with a temporary black paint that will burn off when submitted to normal operating temperatures. For protection against the element and lower underhood temperatures, these headers are also available with a silver or black ceramic-metallic finish.
Each set includes a pair of header and collector gaskets, header flange bolts and collector bolts.
Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.
Hedman Hedders Tight-Tubes Headers For Street Rods/MOPAR A-Body w/318-360 78500
Specifications:
| Description_DEF | [B@54d7ba70 |
| Description_DES | [B@4335b5c6 |
| Description_EXT | [B@1d926a17 |
| Description_FAB | [B@6c318898 |
| Description_FAB | [B@55cbb54 |
| Description_FAB | [B@6b29a5bc |
| Description_FAB | [B@65e5a81c |
| Description_FAB | [B@5708970 |
| Description_FAB | [B@65161491 |
| Description_INV | [B@43b449ca |
| Description_MKT | [B@bd9ace8 |
| Description_SHO | [B@a638fea |
| Title | HEDMAN HEDDERS TIGHT TUBE HEADERS; MOPAR 318-360; 1-5/8 IN. TUBES; UNCOATED |
| Material | Mild Steel |
| Transmission Notes | Modification to shifter linkage may be required. |
| Tube Design | Standard |
| Tube Diameter | 1-5/8 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 | 1-5/8 in. |
| Y-Pipe Included | No |
| Quantity | Sold as a pair. |
| Primary Tube Gauge | 16g |
| Primary Tube Diameter (in) | 1.625 in. |
| Package Contents | Headers, reducers (exhaust adapters), gaskets, mounting hardware |
| Header Material | Mild Steel |
| Header Finish | Uncoated |
| Cylinder Head Port Shape | Rectangle |
| Cylinder Head | Stock Profile Heads |
| Header Construction | MILD STEEL- Standard-Duty |
| Replacement Gasket | 27970 |
| Replacement Head Flange Gasket | 27970 |
| California Proposition 65 | WARNING: Cancer. For more info visit www.P65Warnings.ca.gov |
| Variations | 78506 |
| Tube Material Thickness | 16g |
| Tube Style | Tight Tubes |
| Air Conditioning | Yes |
| Automatic Transmission - Column | Yes |
| Automatic Transmission - Floor | Yes |
| Manual Transmission - Column | Yes |
| Manual Transmission - Floor | Yes |
| Tube Length | Tight Tubes |
| Flange Thickness | 0.3125 in. |
| Exhaust System Dia | 2-1/2 in. |
| Reducer Outlet Size | 2-1/2 in. |
| Collector Attachment | 3 in. |
| Collector Diameter | 3 in. |
| Collector Size | 3 in. |
| Collector Style | 3-Bolt Gasket Style Flange |
| Engine Notes | Chrysler LA Engines Only (inline port pattern). Not For A318 Engine |
| Contents | headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware |
| Engine | Mopar SB 318-360 (inline port pattern only) |
| E.O. # | No |
| Emissions Notes | Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only. |
| Header Port Shape | Rectangle |
| Port Shape | Rectangle |
| Flange Style | Standard |
| Header Style | TIGHT TUBES |
| Finish | Uncoated |
| Finish Type | UNCOATED Mild Steel! Shipped with Temporary Paint. |
| Power Steering | Yes |
