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Rocker Arm Assembly for Honda GX390 & Big Block Clone Engines
188F-13200-A GX390/420 Clone Rocker Arm Assembly
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Rocker Arm Assembly for Honda GX390 & Big Block Clone Engines

Part Number: 188F-13200-A
Online Price: $4.95
Rocker Arm Assembly for Honda GX390 & Clone Engines – Wedge (Non-Hemi)
Availability: In Stock.

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Description

Rocker Arm Assembly for Honda GX390 & Big Block Clone Engines – Wedge (Non-Hemi) Heads


This OEM-style complete rocker arm assembly is designed for Wedge-style (Non-Hemi) cylinder heads found on most Honda GX390, Predator 420, Wildcat 460, and other GX390-style Big Block Clone engines.


Each assembly includes everything needed for one rocker position and is ideal for stock replacements or basic engine rebuilds. Two rocker assemblies are required per engine head—sold individually, not in pairs.


Includes the Following Components:

  • 1x Stamped Steel Rocker Arm
  • 1x Rocker Stud
  • 1x Adjuster Nut
  • 1x Lock Nut


Fitment Notes:

  • Fits Wedge (Non-Hemi) cylinder heads only
  • Does not fit Hemi-style heads
  • Confirm your head style before ordering
  • Two assemblies are needed per head


Application Examples:

  • Honda GX390
  • Predator 420 (Wedge Head)
  • Wildcat 460 (Wedge Head)
  • Other Big Block Clones with single-bolt valve covers

FAQ

Q1: What engines is this rocker arm assembly compatible with?
A: This assembly fits most Honda GX390, Predator 420, Wildcat 460, and similar Big Block Clone engines that use Wedge-style (Non-Hemi) cylinder heads. It is not compatible with Hemi-style heads.


Q2: What parts are included in the assembly?
A: Each rocker arm assembly includes:

  • 1x Stamped Steel Rocker Arm
  • 1x Rocker Stud
  • 1x Adjuster Nut
  • 1x Lock Nut


Q3: How many assemblies do I need for one engine head?
A: You’ll need two rocker arm assemblies per cylinder head—one for the intake valve and one for the exhaust valve. These are sold individually, so order two for a complete head setup.


Q4: Will this fit a Hemi-style GX390 or Predator 420 engine?
A: No. Hemi heads use a different rocker arm design and geometry. This assembly is only for Wedge-style (Non-Hemi)cylinder heads.


Q5: Is this suitable for performance or high-rpm builds?
A: This assembly is OEM-style and best suited for stock or lightly modified engines. For aggressive cams, higher lift, or high-RPM builds, consider aftermarket billet or roller rocker assemblies.

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