Upgrade your 12-valve Cummins valvetrain with our Conical Beehive Valve Springs, delivering 155 lbs of seat pressure to keep valves firmly under control up to 4,500rpm RPM or 65lbs of boost/drive pressure. This conical design offers enhanced stability for moderate cams and OEM-size valves, all the way up to 4,500 RPM.
Why Conical Beehive Springs?
- Improved Valvetrain Control: Reduce valve float and reversion, critical issues when boost and RPM levels rise.
- Power-Boosting Potential: Customers have reported 10–12 HP gains when switching from 60 lb springs to our beehives, thanks to consistent valve seal and reduced reversion.
- Higher Seat Pressure (155 lbs @ 1.880″): Ensures valves won’t be forced open by intake or exhaust pressures, safeguarding against damage and power loss.
- Conical Shape for Stability: The latest spring design improves harmonic damping, leading to smoother, more reliable operation at higher RPM.
What’s Included
- Retainers & Locks: Ready to install for most 12-valve Cummins configurations.
- Optional Locks: Increase your installed height by .075″ if needed for specific build requirements.
Installation & Considerations
- RPM Range: Perfect for builds up to 4,500 RPM with mild-to-moderate cam profiles and stock-size valves.
- When to Upgrade: If you exceed 4,500 RPM or .360″ lift aftermarket cams, or use larger valves, consider stepping up to our Dual Spring kit for added safety and control.
- Combat Valve Float & Reversion: Keep harmful exhaust gases out of the intake stroke, preserving combustion quality and maximizing power.
Elevate your 12-valve Cummins performance with our Conical Beehive Valve Springs (155 lbs seat pressure)—an essential upgrade for improved reliability, consistent power, and better valvetrain durability under demanding conditions.
Please note that actual products may differ from images shown on our website. While we strive for accuracy in product listings, manufacturers may make changes to design, contents, color, or packaging without notice. Product images are for illustrative purposes only and may not represent the exact item you receive.
By purchasing, you acknowledge and accept that variations may occur and release OCDiesel from any liability related to product appearance differences.
Order Processing Time:
Orders are typically processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days depending on the product and customization required.
Shipping Methods:
Standard Shipping (3-7 business days - location dependent)
Express Shipping (1-2 business days- location dependent)
Packaging:
All parts are securely packaged to better prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.
Shipping Rates:
Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.
Order Tracking:
Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your OCDiesel account.
USA Shipping:
We ship to the USA! (Except California) Please note that USA shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.
Not all products are stocked in-house. To ensure you receive your desired items promptly, please check for availability before placing your order. Some products may be backordered due to high demand or supply chain constraints, which could result in longer delivery times.
We strive to keep our inventory updated regularly, but availability can change quickly. For the most accurate information, contact the OCDiesel customer service team using either this link, or the chat bubble on the bottom right of this page.
Most items are eligible for return within 30 days of shipping, provided they are unused, in original manufacturer packaging, and in resalable condition. All returns & cancellations are subject to restocking and cancellation fees.
Returns must include a Return Authorization Number (RA #) and be shipped with tracking. Return shipping costs are the responsibility of the customer.
Custom/special orders, electronics, and digital goods are final sale—no returns, refunds, or exchanges.
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