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Exhaust HeaderStandard Duty Uncoated HeadersStandard Duty Uncoated Headers; Tu... Exhaust HeaderStandard Duty Uncoated HeadersStandard Duty Uncoated Headers; Tube Size 1.75 in.; Collector Size 3 in.; Long Tube; Incl. Headers/Gaskets/3 Bolt Adapters/Mtg. Hardware;FEATURES:Highest Quality Materials Computerized Precision Hand... more

Hedman Hedders 58070 Standard Duty Uncoated Headers Hedman Hedders 58070 Standard Duty Uncoated Headers more

Compatible with 1968-1974 Oldsmobile Cutlass (not Supreme)/442 350-403ci Stand... Compatible with 1968-1974 Oldsmobile Cutlass (not Supreme)/442 350-403ci Standard Headers Primary Tube Collector Size 1.75 in. x 3 in.; Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision... more

Header Stud - 3/8 in Diameter - 1.670 in Long - 12 Point Nuts - Chromoly - Bla... Header Stud - 3/8 in Diameter - 1.670 in Long - 12 Point Nuts - Chromoly - Black Oxide - Oldsmobile V8 - Set of 14 more

Manufactured from high quality materials Easy to install; replaces old or dama... Manufactured from high quality materials Easy to install; replaces old or damaged part This is an OE replacement item Garage-Pro is the most affordable brand for your old worn-out or damaged factory part! This premium quality replacement part is... more

180-1401 by Arp Header Stud 3/8 in Diameter 1.67 in Long 12 Point Nuts Chromol... 180-1401 by Arp Header Stud 3/8 in Diameter 1.67 in Long 12 Point Nuts Chromoly Black Oxide Oldsmobile V8 Set of 14 ⬇� Product details available below ⬇� 🚨 Product Attributes 🚨 Bolt/Stud: Stud Length (in): 1.67 in Base Thread: 3/8-16... more

11150FLT by Flowtech Headers Full Length 1.75 in Primary 3 in Collector Gasket... 11150FLT by Flowtech Headers Full Length 1.75 in Primary 3 in Collector Gaskets / Hardware Included Steel Black Paint Oldsmobile V8 Cutlass 1968-77 Pair ⬇� Product details available below ⬇� 🚨 Product Attributes 🚨 Length: Full Flange... more

180-1101 by Arp Header Bolt 3/8-16 in Thread 0.75 in Long Hex Head Chromoly Bl... 180-1101 by Arp Header Bolt 3/8-16 in Thread 0.75 in Long Hex Head Chromoly Black Oxide Oldsmobile V8 Set of 14 ⬇� Product details available below ⬇� 🚨 Product Attributes 🚨 Bolt/Stud: Bolt Length (in): 0.75 in Thread: 3/8-16 in... more

Upgrade your ride with our performance exhaust header series—built for power... Upgrade your ride with our performance exhaust header series—built for power sound and lasting durability. more

Description: Outlet Size: 3.00 Primary Tube Size: 1.75 Head Flange Thickness: ... Description: Outlet Size: 3.00 Primary Tube Size: 1.75 Head Flange Thickness: 7/16 Outlet Flange Thickness: 3/8 more