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  6. Grade 8 Honda/Clone Head Bolts 4 Piece
Grade 8 Honda/Clone Head Bolts 4 Piece
Grade 8 Honda/Clone Head Bolts 4 Piece
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Grade 8 Honda/Clone Head Bolts 4 Piece

Part Number: DP-260-G8
Online Price: $6.99
DP-260-G8 Grade 8 Cylinder Head Bolts – M8 x 60mm (4-Pack)
Availability: In Stock.

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Description

DP-260-G8 Grade 8 Cylinder Head Bolts – High-Tensile Strength for Modified Engines


Engine reliability starts with proper sealing, especially in high-performance or modified kart racing engines. The DP-260-G8 Head Bolt Set includes four Grade 8 structural steel bolts designed for Honda GX200, 196cc clones, Predator 212, and other similar small-block engines.


With a tensile strength of 150,000 PSI, these M8 x 1.25 x 60mm bolts offer significantly more clamping force than standard hardware store bolts—making them a great upgrade for performance builds. This added strength helps maintain proper cylinder head sealing under increased combustion pressure, high RPMs, and heat.


Why Use Grade 8 Head Bolts?

  • Improved head sealing under high load
  • 150,000 PSI tensile strength resists bolt stretch
  • Essential for modified or race-prepped engines
  • Better than stock bolts from non-racing engine sources


Note:

For extreme builds or open class engines, we recommend upgrading to head studs for maximum clamping force and long-term durability.


What's Included (4-Pack):

  • (4) M8 x 1.25 x 60mm Grade 8 Head Bolts
  • Material: High-strength structural steel
  • Tensile Strength: 150,000 PSI
  • Recommended Torque Spec: 26 ft-lbs


FAQ

1. What’s included in the DP-260-G8 Head Bolt Set?

The kit includes:

  • (4) M8 x 1.25 x 60mm Grade 8 bolts made from high-strength structural steel.


2. What engines are these bolts compatible with?

These bolts fit most small-block engines including:

  • Honda GX200 / 196cc Clones
  • Harbor Freight Predator 212 / 224
  • Tillotson 196–268cc
  • Ducar / Wildcat / other kart racing engines
    Always verify bolt size and thread pitch before installation.


3. What is the tensile strength of these bolts?

These Grade 8 bolts are rated at 150,000 PSI, providing significantly more strength than stock hardware.


4. What is the recommended torque spec?

Torque each bolt to 26 ft-lbs, evenly in a criss-cross pattern using a calibrated torque wrench.


5. Should I use studs instead of bolts?

For extreme applications (open class, highly modified builds), head studs offer better long-term strength and improved thread engagement. These bolts are excellent for most performance applications short of full race builds.

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