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MELLING High Performance Valve Spring upgrade kit : Closed/Open 135/348 PSI @1.8inch : fits 2009+ 5.7L 6.2L 6.4L Gen III Hemi

AU$899.00
Expected ship date:7 Sep 2026(if ordered today)
AU$899.00
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Overview

MELLING High Performance Valve Spring Upgrade Kit for 2009+ Gen III Hemi

 

This MELLING high performance valve spring upgrade kit is designed for 2009 and newer 5.7L, 6.2L and 6.4L Gen III Hemi engines where stronger, more controlled valvetrain performance is required. It is a well-matched package for performance camshaft upgrades, higher RPM use, or fresh engine builds where the factory valve spring hardware is no longer suitable.

The kit uses beehive-style single valve springs with 135 PSI closed pressure at 1.800 inch installed height and 348 PSI open pressure at 1.175 inch. This helps improve valve control under load while maintaining a practical performance setup for modern Hemi applications. Matching chromoly beehive retainers, seat locators, valve locks and valve stem seals are included, helping take the guesswork out of piecing together a complete valvetrain spring package.

This is a quality upgrade for builders chasing reliable high performance from late model Hemi-powered Chrysler, Dodge, Jeep and Ram combinations, especially where camshaft and spring compatibility has been considered as part of the overall engine package.
 

Product Features:

  • Fits 2009 and newer 5.7L, 6.2L and 6.4L Gen III Hemi engines
  • Complete 16 valve spring upgrade kit
  • Beehive-style single valve spring design
  • 135 PSI closed pressure at 1.800 inch installed height
  • 348 PSI open pressure at 1.175 inch open height
  • 1.102 inch coil bind height
  • Includes 16 valve springs
  • Includes 16 chromoly beehive retainers
  • Includes 16 chromoly beehive seat locators
  • Includes 16 valve stem oil seals
  • Includes 16 pairs of valve locks
  • Suitable for performance camshaft and valvetrain upgrade applications

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Additional Information

SKU 43354
Sale Unit Each
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