Hot Cams 5PK748330 Shim Package Refills - High-Strength Steel Valve Shims for Engine Timing Adjustments

Description

Precision engine tuning requires reliable valve shims, and Hot Cams' 5PK748330 Shim Package Refills deliver unmatched accuracy with high-strength steel construction. This comprehensive set of 144 shims (12 each of 12 sizes) ensures perfect cam timing adjustments for maximum power and efficiency across a wide range of engine applications.

Key Features

  • High-Strength Steel Construction: Durable, corrosion-resistant material withstands extreme engine conditions for long-lasting performance.
  • 1.20mm to 3.20mm Thickness Range: Precise size options (12 distinct measurements) provide exact fitment for specialized camshaft adjustments.
  • 144 Shim Quantity: 12 shims per size in the full 12-size assortment ensures you're always prepared for engine maintenance or upgrades.
  • Engineered for Performance: Optimized for high-revving engines and performance applications requiring precise valve timing synchronization.

Why Choose This Product

Whether you're tuning a high-performance motorcycle, ATV, or off-road vehicle, these professional-grade shims offer the precision needed for optimal engine efficiency. The extensive size range accommodates various camshaft profiles, while the durable steel construction ensures consistent performance under demanding conditions. With 144 shims in stock, you'll have the complete solution for regular maintenance, repairs, or custom engine builds. Trust Hot Cams for reliable, precision-engineered components that deliver measurable improvements in power and responsiveness.
SKU: GMB68357DF
MPN: 5PK748330
Category: Engine
Brand: Hot Cams
Stock: In Stock
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Precision engine tuning requires reliable valve shims, and Hot Cams' 5PK748330 Shim Package Refills deliver unmatched accuracy with high-strength steel construction. This comprehensive set of 144 shims (12 each of 12 sizes) ensures perfect cam timing adjustments for maximum power and efficiency across a wide range of engine applications.

Key Features

  • High-Strength Steel Construction: Durable, corrosion-resistant material withstands extreme engine conditions for long-lasting performance.
  • 1.20mm to 3.20mm Thickness Range: Precise size options (12 distinct measurements) provide exact fitment for specialized camshaft adjustments.
  • 144 Shim Quantity: 12 shims per size in the full 12-size assortment ensures you're always prepared for engine maintenance or upgrades.
  • Engineered for Performance: Optimized for high-revving engines and performance applications requiring precise valve timing synchronization.

Why Choose This Product

Whether you're tuning a high-performance motorcycle, ATV, or off-road vehicle, these professional-grade shims offer the precision needed for optimal engine efficiency. The extensive size range accommodates various camshaft profiles, while the durable steel construction ensures consistent performance under demanding conditions. With 144 shims in stock, you'll have the complete solution for regular maintenance, repairs, or custom engine builds. Trust Hot Cams for reliable, precision-engineered components that deliver measurable improvements in power and responsiveness.
SKU GMB68357DF
MPN 5PK748330
Brand Hot Cams
Category Engine
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Reviews

Make Model Years
Honda CRF450R 2009-2015
Kawasaki KX450F 2010-2013
Yamaha YZF450 2008-2014
KTM 450 SX-F 2009-2015

Frequently Asked Questions

Fits Honda CRF450R (09-15), Kawasaki KX450F (10-13), Yamaha YZF450 (08-14), and similar 450cc models. Check full fitment list.

Yes, highly recommended. Hot Cams often require different clearances, and stock shims may not suffice.

Remove cams, measure clearance with feeler gauge, measure old shim with micrometer, calculate new thickness = old + measured clearance - target clearance.

This is a refill assortment pack with 144 shims in common sizes for multiple adjustments.

Installation Guide

Difficulty Medium
Est. Time 2 hr 0 min

Tools Required

  • feeler gauges
  • micrometer
  • valve shim tool
  • torque wrench
  • socket set

Pro Tips

  • Measure valve clearances hot if possible
  • Use shim thickness calculator apps
  • Label shims by size during removal

Common Mistakes to Avoid

  • Incorrect shim thickness measurement
  • Not cleaning shim seats properly
  • Over-torquing rocker arms

Comparison vs Stock/OEM

Aftermarket precision-ground shims match OEM tolerances but provide fuller size assortment for performance cam adjustments

Improvements

  • Wider range of thicknesses
  • Higher volume pack for multiple engines or adjustments
  • Consistent hardness for durability

Considerations

  • Requires precise measurement skills unlike OEM pre-sized shims

Durability & Warranty

Expected Lifespan Matches engine rebuild interval (indefinite with proper install)
Warranty 1 year manufacturer defect warranty
Maintenance Inspect during every valve adjustment (every 30-50 hours racing)

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