1. Home
  2. Engines
  3. Harbor Freight Engines
  4. Predator 420 Engines
  5. Head & Valve Train
  6. Valve Cover for Honda GX390 & Big Block Clone Engines
Valve Cover for Honda GX390 & Big Block Clone Engines
188F-11330-A GX390/420 Clone Valve Cover
Write a Review

Valve Cover for Honda GX390 & Big Block Clone Engines

Part Number: 188F-11330-A
Online Price: $9.95
Valve Cover for Honda GX390 & Big Block Clone Engines – Wedge (Non-Hemi)
Availability: In Stock.

Send to:

*We'll ask for shipping info at checkout

Description

Valve Cover for Honda GX390 & Big Block Clone Engines – Wedge (Non-Hemi) Style


This OEM-style valve cover is designed to fit most Honda GX390 and GX390-style Big Block Clone engines that use a Wedge-style (Non-Hemi) cylinder head with a single center bolt for securing the cover.


Made for standard GX390 clone applications, this cover is a direct-fit solution for engines using the single-bolt mounting system, commonly found in Predator 420s and similar clones with Wedge heads.


Not compatible with:

  • 4-bolt valve covers
  • Hemi-style cylinder heads
  • Wildcat 460 or aftermarket heads using multi-bolt patterns


Key Features

  • Fits most GX390 and Big Block Clones with Wedge (non-Hemi) heads
  • Single-bolt mounting design for easy installation
  • Durable construction for reliable sealing and protection
  • Ideal for stock rebuilds and replacement valve cover needs



FAQ

Q1: What engines is this valve cover compatible with?
A: This valve cover is compatible with most Honda GX390, Predator 420, and Big Block Clone engines that use a Wedge-style (Non-Hemi) cylinder head with a single center bolt to secure the valve cover.


Q2: Will this fit Hemi-style heads?
A: No. This valve cover is not compatible with Hemi-style cylinder heads, which use a different shape and bolt pattern. It also won’t fit 4-bolt wedge heads or other non-standard configurations like the Wildcat 460.


Q3: How is this valve cover mounted?
A: It uses a single bolt that passes through the center of the valve cover, securing it to the cylinder head between the rocker arms—common on Wedge (non-Hemi) heads.


Q4: Can I use this on a modified or aftermarket head?
A: Only if the aftermarket head maintains the single-bolt, Wedge-style configuration. Always check your head’s bolt pattern and shape before ordering.


Q5: Is a gasket included?
A: This listing is for the valve cover only unless stated otherwise. You’ll typically need a rubber valve cover gasket(sold separately) for proper sealing.

Related Items

Recently Viewed Items