Hedman Hedders - 78500
Headers - Tight Tubes - 1.625 in Primary - 3 in Collector - Steel - Black Paint - Small Block Mopar - Mopar A-Body / B-Body / E-Body / Truck / Van 1967-76 / Street Rod - Pair
HEDMAN TIGHT TUBES Headers; MOPAR 318-360; 1-5/8 in. Tube Diameter; 2-1/2 in. Collector- UNCOATED, Mild Steel
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.
- The Lowest Profile Header On The Market
- The Flat, Clamshell Style Collector Has an Extremely Low Profile So they'll Fit in Nearly Any Street Rod or Custom Build With Little Clearance.
- The High Volume Flat Collector Offers Improved Exhaust Flow For Far Superior Performance Over Classic Block Hugger Models.
- Includes Classic, 3-Bolt Gasket-Style Header Collectors, Mounting Hardware, Gaskets and Reducers (exhaust adapters)
- Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating!
- Proud To Say, Made In The USA, Since 1954!
Bolts/Studs Included: Yes
Flange Thickness: 0.3125 in.
Gasket Or Seal Included: Yes
Header Style: TIGHT TUBES
Reducers Included: Yes
Air Conditioning: Yes
Collector Size: 3 in.
Collector Style: 3-Bolt Gasket Style Flange
Engine Notes: MOPAR 318-360 (1967 and later LA Engines with inline port pattern only.)
Exhaust System Dia: 2-1/2 in.
Finish: Uncoated
Flange Style: Standard
Replacement Head Flange Gasket: 27970
Header Port Shape: Rectangle
Material: Mild Steel
Port Shape: Rectangle
Power Steering: Yes
Reducer Outlet Size: 2-1/2 in.
Tube Diameter: 1-5/8 in.
Tube Length: Tight Tubes
Tube Size: 1-5/8 in.
Tube Style: Tight Tubes
Variations: 78506
Cylinder Head Port Shape: Rectangle
Header Finish: Uncoated
Header Material: Mild Steel
Mounting Hardware Included: Yes
Primary Tube Diameter (in): 1.625 in.
Tuned: No
Weld-Up: No
Collector Bolts Included: Yes
Catalytic Converter(s) Included: No
Crossover Pipe Included: No
Motor Mounts Included: No
Quantity: Sold as a pair.
Cylinder Head: Stock Profile Heads
Replacement Gasket: 27970
Installation Hardware Included: Yes
with A.I.R. System: No
with EGR: No
Y-Pipe Included: No
Header Construction: MILD STEEL- Standard-Duty
E.O. #: No
Transmission Notes: Modification to shifter linkage may be required.
Automatic Transmission - Floor: Yes
Automatic Transmission - Column: Yes
Manual Transmission - Column: Yes
Manual Transmission - Floor: Yes
Contents: headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware
Notes: 66-76 Various Mopar Cars; 273-360
Engine: Mopar SB 318-360 (inline port pattern only)
Emissions Notes: Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only.
Collector Attachment: 3 in.
Collector Diameter: 3 in.
Package Contents: Headers, reducers (exhaust adapters), gaskets, mounting hardware
Tube Material Thickness: 16g
Primary Tube Gauge: 16g
Tube Design: Standard
Header Fasteners Included: Yes
Finish Type: UNCOATED Mild Steel! Shipped with Temporary Paint.
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