Description
Designed as a direct replacement for factory M178 head bolts, our ARP Head Studs are one of the most popular upgrades for your high boost M178 Engine. These ARP studs are made of 625 grade Inconel and are equipped to handle extreme cylinder pressures.
These studs have proper thread length for your M178 engine. Don't purchase the wrong hardware. Trust the engineers at PTG to get you setup right!
Kit Includes:
- Twenty ARP 625 Grade Inconel Head Studs
- Twenty ARP Head Stud Washers
- Twenty ARP Head Stud 12-Pt Nuts
Installation requires silicone sealant.
| Mercedes-Benz |
GT |
2015-2023 |
M178 4.0 L V8 |
| Mercedes-Benz |
AMG GT Black Series |
2021-2023 |
M178 4.0 L V8 |
| Mercedes-Benz |
AMG GT-C |
2015-2023 |
M178 4.0 L V8 |
| Mercedes-Benz |
AMG GT-R/Pro |
2015-2023 |
M178 4.0 L V8 |
| Mercedes-Benz |
AMG GT-S |
2015-2023 |
M178 4.0 L V8 |
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