6.0L Power Stroke Inner Row Bolt Installation Guide (2003–2007) — CP116

This guide covers installation of the XOTIC PERFORMANCE™ CP116 inner row bolt kit for the 2003–2007 6.0L Ford Power Stroke. Inner row bolts are the five small M8 fasteners per bank that complete the clamping package on the 6.0L — and if you're doing head studs, this is the time to replace them. Prefer a printable copy? Download the PDF manual.

Why replace the inner row bolts

When a 6.0L head comes off for studs or a gasket, the small M8 inner row bolts have already survived years of high-pressure, high-temperature duty. The CP116 kit replaces them with ten high-grade M8 bolts and ten precision-machined hardened washers, so every fastener in the joint is fresh hardware torqued to a known preload. It's a small line item on a big job — and one you don't want to reuse.

What's in the CP116 kit

• 10 × inner row M8 bolts
• 10 × hardened parallel washers
• 1 × socket
• 1 × fastener assembly lubricant

How to install inner row bolts on a 6.0L Power Stroke

1. Inspect first. Before installing any components, check for any product damage and report it to us.
2. Clean the block threads. Clean the threads prior to installing the bolts to ensure accurate fitment and precise torque readings. An M8 x 1.25 thread chaser (CS317) makes this fast and protects the threads.
3. Degrease the seating surfaces. Using a clean cloth, remove all oil from the washers and from the cylinder head surface where the washers seat. Cleaning debris ensures accurate preloads.
4. Install the cylinder head. Inspect for any misalignment.
5. Seat the washers — chamfer up. Place the washers on the cylinder head with the inner diameter of the chamfer side facing upward.
6. Lubricate. Using the supplied fastener assembly lubricant, coat the bolt threads and the underside of the bolt heads.
7. Install the bolts hand-tight. Thread the bolts into the cylinder head as tight as can be made by hand, until they contact the washers.
8. Torque in three stages. Torque the bolts to 8 ft-lbs, then 16 ft-lbs, and finally 25 ft-lbs.

6.0L inner row bolt torque specs

Frequently asked questions

What are the torque specs for 6.0L inner row bolts?

Three stages: 8 ft-lbs, then 16 ft-lbs, then a final pass at 25 ft-lbs.

Do I need the CP116 kit if I'm installing CP874 head studs?

The CP874 head stud kit includes inner row bolts, and its manual notes the inner row torques to 25 ft-lbs when paired with CP116 hardware. The CP116 kit is the standalone option — for a repair that doesn't involve studs, or as fresh replacement hardware.

Which way do the washers face?

Inner diameter of the chamfer side facing up (toward the bolt head), seated on a clean, oil-free surface.

What size thread chaser fits the inner row bolt holes?

M8 x 1.25 — the CS317 chaser.

Doing the full head job?

Most CP116 installs happen alongside a head stud upgrade. See the CP874 head stud kit and our 6.0L Power Stroke head stud installation guide for the complete procedure and torque sequence.

Need help?

For technical support, email support@xotic-performance.com. All XOTIC PERFORMANCE™ fasteners are covered by our limited lifetime warranty. Finished your install? Tag #XOTICPERFORMANCE on Instagram for a chance to be featured.

© 2026 XOTIC PERFORMANCE™. This installation guide is an original copyrighted work of XOTIC PERFORMANCE™. Reproduction, distribution, or use of this content in whole or in part without written permission is prohibited. Doc ref: 2025.05.27 (web edition 2026.08).