Fastener Tightening Specifications
Fastener Tightening Specifications
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Catalytic Converter Nut | 60 N.m | 44 lb ft |
| Catalytic Converter Pipe Stud Nut | 35 N.m | 26 lb ft |
| Exhaust Crossover Pipe Nut (LS4) | 25 N.m | 18 lb ft |
| Exhaust Hanger Bracket Bolt | 25 N.m | 18 lb ft |
| Exhaust Manifold Bolt (LS4) | ||
|
15 N.m | 11 lb ft |
|
20 N.m | 15 lb ft |
| Exhaust Manifold Heat Shield Bolt (LS4) | 9 N.m | 80 lb in |
| Exhaust Pipe Rear Hanger Bolt | 25 N.m | 18 lb ft |
| Rear Bumper Impact Bar Bolt | 25 N.m | 18 lb ft |
| Tail Pipe Extension Clamp | 68 N.m | 50 lb ft |