Hamilton Cams 155 lb Beehive Valve Spring Kit 89-98 5.9L Cummins
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Regular price
$389.00
Verified Fitment & Application Support
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
Got Questions? Feel free to email us or call us at (503) 235-1947
Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for
competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase.
Orders shipping to restricted areas may be canceled.
Conical beehive valve springs for the 12-valve Cummins at 155 lbs seat pressure measured at 1.880 inches, supplied with retainers and locks. The conical shape improves harmonic damping over a straight spring, and the higher seat pressure keeps valves from being pushed open by boost or drive pressure. Hamilton rates the package to 4,500 RPM or 65 lbs of boost.
Key Features
- 155 lbs seat pressure at 1.880 inches
- Conical beehive design for improved harmonic damping and stability
- Controls the valvetrain to 4,500 RPM or 65 lbs of boost and drive pressure
- Reduces valve float and reversion under boost
- Customers report 10-12 HP gains moving from 60 lb springs
- Suited to moderate cam profiles and OEM-size valves
What's Included
- Valve springs
- Retainers and locks, ready to install on most 12-valve configurations
- Optional locks available to increase installed height by .075 inch
Fitment
- 1989-1998 Dodge Ram 5.9L Cummins 12-valve
When to Step Up
- Above 4,500 RPM, with aftermarket cams over .360 inch lift, or with larger valves, move to the Hamilton Cams dual spring kit
Product Details
- Brand: Hamilton Cams
- Manufacturer Part Number: 07-s-001
- UPC: 857340008698
Shipping Height: 0.0
Shipping Length: 0.0
Shipping Width: 0.0