Product Description
Hamilton 110 lb seat-pressure competition springs for 24-valve Cummins. Ideal for high-RPM, high-boost builds and heavy valvetrain control. Good to ~6,500 RPM with the correct supporting parts. Not recommended for daily-driver comfort.
Fitment
- 1998.5–2024 Dodge Ram 2500/3500 with 5.9L or 6.7L 24-valve Cummins
- Works with performance camshafts and upgraded pushrods/tappets
Cross-Reference / Alternatives
- Hamilton Tool-Steel Retainers (required above ~4,500 RPM): 07-S-004
- Hamilton 103# Valve Springs (street-friendly alternative): 07-S-003
- CPP 115# 24V Valve Springs (performance street/tow): CPP 115#
- Fleece 24V Spring & Retainer Set (matched kit): FPE-34797
- Valve Spring Compressor Tool (24V): CPP 24V Tool
- Hamilton Extreme-Duty 12mm Pushrods (recommended with high spring pressures): 07-P-004
- Hamilton 220/240 Steel Camshaft (pair for high-RPM builds): 07-C-220/240
FAQ
How much RPM can these springs support?With the proper retainers and supporting valvetrain, these 110# springs are suitable up to roughly 6,500 RPM for competition use.
Are tool-steel retainers required?Yes—above ~4,500 RPM Hamilton specifies their tool-steel retainers to prevent retainer failures. Use 07-S-004.
Is this set good for a daily driver?These are competition-oriented springs with higher seat pressure. For daily use, consider 103# or CPP 115# options.
What supporting parts do you recommend?At minimum: tool-steel retainers, quality pushrods, and a proper spring compressor. For aggressive profiles, consider a steel camshaft/tappets and verify installed height.
