Description
The ARP 180-1401 header stud kit is specified for Oldsmobile 330-455 cid. These fasteners secure the exhaust header connection and must match the flange and cylinder-head thread arrangement.
Technical Highlights
- Manufacturer part number: 180-1401
- Application/configuration: Oldsmobile 330-455 cid
- Specified configuration: 12-Point
Selection Guidance
Correct thread engagement and wrench access are important at the header flange. A different flange thickness or tube layout can change the required length or available tool clearance.
Check cylinder-head threads, flange thickness and access around the header tubes. Header fasteners are distinct from the fasteners that secure the cylinder head to the engine block. Pay particular attention to the stated 12-Point configuration.
Installation Considerations
Trial-fit the header, gasket and fasteners before final tightening. Confirm the hardware seats against the flange without bottoming in the threaded hole, and use the kit-specific assembly procedure.