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Hedman Hedders HTC Coated Headers; 1-5/8 in. Tube Dia; 3 in. Coll; FULL LENGTH Design 68346 fits 1971-1977 Chevrolet / Old...
Hedman Hedders HTC Coated Headers; 1-5/8 in. Tube Dia; 3 in. Coll; FULL LENGTH Design 68346 fits 1971-1977 Chevrolet / Old...
Hedman Hedders HTC Coated Headers; 1-5/8 in. Tube Dia; 3 in. Coll; FULL LENGTH Design 68346 fits 1971-1977 Chevrolet / Old...
Hedman Hedders HTC Coated Headers; 1-5/8 in. Tube Dia; 3 in. Coll; FULL LENGTH Design 68346 fits 1971-1977 Chevrolet / Old...
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Hedman Hedders HTC Coated Headers; 1-5/8 in. Tube Dia; 3 in. Coll; FULL LENGTH Design 68346 fits 1971-1977 Chevrolet / Oldsmobile / Pontiac

⚠️ Please verify fitment before purchasing. Check the fitment chart below or use the Year/Make/Model tool to confirm this part fits your vehicle.

⚠️ Verify fitment before purchasing. Check the fitment chart below or click the 3 lines in the top left menu, select Home, then use the Year/Make/Model guide.

Hedman Hedders
68346
Out of stock
$1,481.32 USD $700.99 USD
Hedman Hedders HTC Coated Headers; 1-5/8 in. Tube Dia; 3 in. Coll; FULL LENGTH Design 68346 fits 1971-1977 Chevrolet / Oldsmobile / Pontiac
Description
HTC Coated Headers; 1-5/8 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design


Specifications:

Description_DEF [B@207a3ec6
Description_DES [B@3b7ef09
Description_EXT [B@33339623
Description_FAB [B@43bde777
Description_FAB [B@32c07dc8
Description_FAB [B@eb3133e
Description_FAB [B@219e0e45
Description_FAB [B@d34d35e
Description_FAB [B@3c2bc10d
Description_INV [B@2a170f55
Description_SHO [B@7b2ac074
Cylinder Head Stock Profile Heads
Title HEDMAN HEDDERS HTC COATED HEADERS; 1-5/8 IN. TUBE DIA.; 3 IN. COLL.; FULL LENGTH DESIGN
Primary Tube Gauge 16g
Primary Tube Diameter (in) 1.625 in.
Package Contents Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
Header Material Mild Steel
Header Finish HTC Polished Silver Ceramic-Metallic
Cylinder Head Port Shape Round
Header Construction MILD STEEL- Standard-Duty
Replacement Gasket 27500
Replacement Head Flange Gasket 27500
California Proposition 65 WARNING: Cancer & Reproductive Harm. For more info visit www.P65Warnings.ca.gov
with A.I.R. System No
Tube Size 1-5/8 in.
Tube Style Long Tubes
Air Conditioning No
Automatic Transmission - Column No
Automatic Transmission - Floor No
Manual Transmission - Column No
Manual Transmission - Floor Yes
Tube Material Thickness 16g
Material Mild Steel
Tube Design Standard
Tube Length Long Tubes
Tube Diameter 1-5/8 in.
Reducers Included Yes
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
Mounting Hardware Included Yes
Y-Pipe Included No
Variations 68340
Quantity Sold as a pair.
Flange Thickness 0.3125 in.
Footnotes 131. Chevy Engine
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 BALL and SOCKET Style (Gasketless)
Notes Chev. Monza, Vega, Olds Starfire, Pontiac Astre, Sunbird V8 Swap
Contents Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions
Finish HTC Polished Silver Ceramic-Metallic
Finish Type HTC SILVER (polished) Ceramic-metallic Coating
Header Style Long Tube
E.O. # No
Power Steering No
Emissions Notes Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only.
Header Port Shape Round
Port Shape Round
Flange Style Standard


This Part Fits:

Year Make Model Submodel Engine
1976 Chevrolet Monza Base Hatchback 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1976-1979 Chevrolet Monza 2+2 Hatchback 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1976-1979 Chevrolet Monza 2+2 Spyder Hatchback 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1977 Chevrolet Monza Mirage Hatchback 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1977 Chevrolet Monza Towne Coupe Cabriolet Coupe 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1977 Chevrolet Monza Towne Coupe Coupe 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1977 Chevrolet Monza Towne Coupe Sport Coupe 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1977 Oldsmobile Starfire Base Hatchback 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1977 Oldsmobile Starfire Firenza Hatchback 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1977 Oldsmobile Starfire GT Hatchback 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1977 Oldsmobile Starfire SX Hatchback 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978 Chevrolet Monza Sport Coupe 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978-1979 Chevrolet Monza 2+2 Sport Hatchback 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978-1979 Chevrolet Monza Base Coupe 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978-1979 Chevrolet Monza Base Wagon 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978-1979 Chevrolet Monza S Hatchback 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978-1979 Oldsmobile Starfire Base Coupe 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978-1979 Oldsmobile Starfire Firenza Coupe 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978-1979 Oldsmobile Starfire GT Coupe 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978-1979 Oldsmobile Starfire SX Coupe 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978-1979 Pontiac Sunbird Base Coupe 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978-1979 Pontiac Sunbird Base Hatchback 2-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
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