This ARP Main Cap Side Bolt Kit replaces the factory cap-side main bolts on late aluminum-block Ford Modular V8 engines with high-strength M9 bolts for improved main-cap rigidity and clamp load. Used alongside the main stud/bolt kit on cross-bolted blocks.
| Type | Main cap side bolt kit (M9) |
| Application | Ford Modular V8 (late aluminum block) |
| Includes | Cap-side main bolts |
| Part Number | 156-5002 |
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