Engines and Components› Camshafts and Valvetrain

PSI Performance Springs

Beehive Valve Spring Set

$355.01

SKU: 1515ML

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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
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Moderate — 2–4 hours

Overview

The PSI 1515ML is a set of 16 beehive-style valve springs designed for high-performance LS engines. These springs feature an enhanced nitriding process for increased surface strength and durability, reducing fatigue.

They are specifically engineered for applications requiring up to .650″ lift, ensuring optimal valve control. The PSI 1515ML springs are an ideal choice for Circle Track and Road Circuit racing due to their enhanced endurance and reliability.
Show original supplier description
The PSI Beehive Valve Spring Set (1515ML) is a high-performance valvetrain component designed for LS engines, supporting up to .650″ lift. Building upon the successful 1200 series, this set incorporates an advanced in-house nitriding process. This treatment enhances surface strength and fatigue resistance while maintaining a balanced softness in the core material, thereby extending the lifespan of the springs. These springs are particularly well-suited for demanding racing environments such as Circle Track and Road Circuit racing, where long-term durability and resistance to surface fatigue are critical. The enhanced nitriding provides improved wear resistance, minimizing the risk of spring failure under sustained stress. However, it is important to note that the nitriding process results in a slight reduction in core hardness. Consequently, these springs are not recommended for drag racing applications, where maximum stiffness is often prioritized over endurance. The set includes 16 springs. This product is not legal for use in California or other states with similar laws/regulations. The vehicle application list includes various GM models such as 1st and 2nd Gen CTS-V, 4th and 5th Gen Camaro, C5 and C6 Corvette, Chevy SS, G8 GT/GXP, GM Trucks (1999-2007 and 2007-2014), GTO, and Trailblazer SS (2006-2009).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandPSI Performance Springs
Part Number1515ML
CategoryEngines and Components
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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