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Adjustable Pushrod Length Tool 5.100-6.365
EC Adjustable Pushrod Length Tool w/6mm Ball Ends
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Adjustable Pushrod Length Tool 5.100-6.365" w/6mm Ball Ends

Part Number: GP-6000
Online Price: $24.99
Adjustable Pushrod Length Tool for GX390, Predator & Big Block Clones
Availability: In Stock.

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Description

Adjustable Pushrod Length Tool for GX390, Predator 459, Duromax, Wildcat, and Other Big Block Clone Engines


Get precision valve train geometry with EC’s adjustable pushrod length tool—specifically designed for big block Honda-clone engines like the GX390, Predator 459, Duromax, Wildcat 460, and similar platforms. Whether you're building a performance engine or correcting geometry after modifying cam, rocker arms, or heads, this tool is essential for dialing in your custom pushrod length.


Tool Features:

  • Adjustable Range: Measures pushrod lengths from 5.100" to 6.365"
  • Anodized Aluminum Body: Lightweight, durable, and corrosion-resistant
  • Knurled Locking Nut: Easy to lock by hand—no tools required
  • 5mm Ball Ends: Compatible with small block rocker arms and tappets for versatile use


Why Precision Matters:

Pre-cut pushrods may be convenient, but cutting your own to the exact length ensures optimal rocker arm geometry—a critical factor in high-performance engines. Proper geometry:

  • Reduces valve train harmonics and minimizes the risk of valve float
  • Ensures more accurate valve timing, improving lift, duration, and speed
  • Prevents premature wear on valves, guides, and rocker arms

Using this adjustable tool helps you confidently measure and custom-cut pushrods for maximum performance and reliability.

FAQ

Q1: Why do I need an adjustable pushrod length tool?
A: This tool helps you determine the exact pushrod length needed after modifying your engine’s cam, rocker arms, or head. It ensures proper rocker geometry, which impacts valve timing, lift, and long-term durability.


Q2: What engines is this tool compatible with?
A: It’s designed for big block engines like the Honda GX390, Predator 459, Duromax 440, Wildcat 460, and similar Honda-clone engines with 5mm ball ends.


Q3: What is the measurement range of the tool?
A: It can be adjusted between 5.100 inches to 6.365 inches, covering the full range of common pushrod lengths for big block clones.


Q4: Why does pushrod length affect rocker arm geometry?
A: Correct pushrod length aligns the rocker arm’s motion with the valve tip, minimizing wear, reducing harmonics, and ensuring proper valve lift and timing for maximum performance.


Q5: Do I need any special tools to use this pushrod checker?
A: No. It features a knurled locking nut that secures by hand—no additional tools are required for adjustment.

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