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Free shipping over $100 · USA & Canada
Free shipping over $100 · USA & Canada

Head & Main Stud Combo Kit

6.4L Ford Power Stroke

2008–2010

PART # CP875-MP875

Original price $717.40 - Original price $717.40
Original price
$717.40
$717.40 - $717.40
Current price $717.40
Availability:
in stock, ready to be shipped
Limited Lifetime Warranty
Free shipping is available on orders over $100 shipping to the USA or Canada.

Overview

Complete Engine Fastener Solution – Head Studs + Main Studs Combo Kit

Upgrade your engine build with the ultimate combination of strength and reliability. This premium combo kit includes both head studs and main studs, providing a complete solution for securing your engine’s most critical components.

Why settle for one when you can get both? Pairing head studs and main studs together ensures uniform clamping force throughout the top and bottom end, dramatically improving the overall integrity and performance of your engine under high stress and extreme conditions.

Whether you’re boosting, towing, or daily driving, this all-in-one kit reduces the risk of head lift, blown head gaskets, and main cap walk – common failure points in high-performance applications. 

Head Studs (Part # CP875)
  • 20x Head Studs (M16 x 198 mm)
  • 20x Nuts  M16 12-Point Nuts
  • 30x Hardened Parallel Washers
  • 10x Inner Row Bolts (M8 x 82.5 mm)
  • 1x Allen Wrench (5 mm)
  • 2x Sockets (10 mm and 21 mm)
  • 1x Fastener Assembly Lubricant
Main Studs (Part # MP875) 
  • 20x Main Stud
  • 20x Nuts
  • 1x Allen Wrench
  • 1x Fastener Assembly Lubricant
  • 1x Socket

Your application

The right fit comes first.

Browse the compatible applications below, or check your exact vehicle before adding this product to your cart.

Check my vehicle

For the listed 6.4L Ford Power Stroke application. Includes the CP875 head-stud kit and MP875 main-stud kit.

Head & Main Stud Combo Kit — 6.4L Ford Power Stroke

Inside the box

Know exactly what arrives.

Included components for this product.

Included components for Head & Main Stud Combo Kit — 6.4L Ford Power Stroke
QtyComponent
1 CP875 head-stud kit
20 M16 × 198 mm head studs, 20 nuts, 30 hardened parallel washers and 10 M8 × 82.5 mm inner-row bolts, with a 5 mm Allen wrench, 10 mm and 21 mm sockets and assembly lubricant.
1 MP875 main-stud kit
20 main studs and 20 nuts, with an Allen wrench, socket and assembly lubricant.

Engineering details

Two joints. Defined roles.

Head studs secure the cylinder head to the block. Main studs secure the crankshaft main-bearing caps. Use the hardware and procedure specified for each assembly.

Head and main stud groups Representative head stud and main stud with flanged nuts and washers. Stud lengths, quantities and supplementary hardware vary by kit. This is not an engine installation layout. Head studsMain studsNuts + washers
Representative component groups. See the contents for exact parts and quantities.

Head hardware

The CP875 kit supplies the head studs and accompanying hardware used to secure the cylinder-head assembly.

Main hardware

The MP875 kit supplies the main studs and accompanying hardware used at the crankshaft main-bearing caps.

Keep each procedure with its kit

Stud positions, lubricant requirements and tightening procedures are component-specific. Use the separately labeled installation documents for each included kit.

XOTIC 7200 / Material comparison

Tensile & yield strength.

Two measures of strength. Explore the comparison for XOTIC 7200 alloy and 8740 chromoly steel.

Tensile strength

The maximum tensile stress a material withstands before failure.

Original tensile comparison diagram: XOTIC 7200, 232K PSI, in solid blue; 8740 chromoly steel, 222K PSI, in dashed graphite.
Existing material comparison illustration. Not a product-specific kit test.
XOTIC 7200 series

232K PSI

8740 chromoly steel

222K PSI

Yield strength

The stress at which a material begins to deform permanently.

Original yield comparison diagram: XOTIC 7200, 212K PSI, in solid blue; 8740 chromoly steel, 201K PSI, in dashed graphite.
Existing material comparison illustration. Not a product-specific kit test.
XOTIC 7200 series

212K PSI

8740 chromoly steel

201K PSI

The original comparison identifies an M14 × 237 specimen. This material comparison relates to the alloy used in the included head and main studs.

Original method note: ISO 6892-1:2016 or ASTM A370 / ASTM E8/E8M in the US.

Material specification

220–240K PSI

Strength specification

The XOTIC 7200 head and main studs in this bundle have a published tensile-strength range of 220,000–240,000 psi. Tensile strength describes the material under tension; it is not an installed clamping-force or horsepower rating.

View the test documentation

The linked ATRONA report records a 240,000 psi tensile result for a submitted stud tested in May 2020. This result applies to the submitted sample.

View source report

See the details

Behind the product.

Watch the video selected for this product.

Before you begin

A good install starts here.

Review the instructions and any application-specific requirements before you begin.

Open the instructions for the component you are installing. Each linked document covers the named kit; its procedure and torque values apply to that component.

Before you order

Which kits are included?

This bundle contains one CP875 head-stud kit and one MP875 main-stud kit. The included-kit list identifies their hardware and links to each component.

Does it fit my engine?

For the listed 6.4L Ford Power Stroke application. Includes the CP875 head-stud kit and MP875 main-stud kit.

Do both kits use the same installation procedure?

No. The head and main assemblies have separate hardware arrangements and tightening procedures. Use each kit’s labeled manual; do not transfer torque values between them.

What warranty applies?

The included fastener kits carry Limited Lifetime Warranty coverage. See the policy for terms.

California Proposition 65 warning

WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov

From our customers

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Talk through fitment or installation planning with the XOTIC team.