Description
The ARP 135-3605 exhaust bolts is specified for Chevrolet Big Block Late Bowtie/Dart Merlin. These fasteners secure the exhaust header connection and must match the flange and cylinder-head thread arrangement.
Technical Highlights
- Manufacturer part number: 135-3605
- Application/configuration: Chevrolet Big Block Late Bowtie/Dart Merlin
- Specified configuration: Hex
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 Hex 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.