40-40100 Racing Valve Spring Kit
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40-40100 Racing Valve Spring Kit
Unlock the full potential of your racing engine with the 40-40100 Racing Valve Spring Kit. Crafted with precision and designed for performance, this kit ensures that your engine runs smoothly and efficiently, even under the most demanding conditions.
Key Features:
- Premium Materials: Made from high-quality Kobe Super-Clean Chrome Silicon Wire, ensuring durability and performance.
- Advanced Engineering: Each spring is engineered for specific applications using cutting-edge simulation and analysis software, focusing on cam and spring harmonics, stress, mass, and operational RPM.
- Optimal Performance: Provides 80 lbs of seat pressure and 205 lbs at 0.435" lift (max), making it ideal for high-performance racing applications.
- Lightweight Design: The heat-treated steel retainer and beehive spring design significantly reduce reciprocating mass while maintaining the necessary spring forces.
- OEM Compatibility: Designed for compatibility with the OEM integrated seal/base (OE# 3610212), where applicable, ensuring seamless installation and performance enhancement.
Elevate your racing experience with the 40-40100 Racing Valve Spring Kit. Experience unmatched performance and reliability that can withstand the pressures of competitive racing. Upgrade your valve springs today and feel the difference on the track!
Shipping & Returns
Shipping & Returns
Shipping:
Most qualifying in-stock orders are processed within one business day. In the contiguous 48 states, eligible in-stock orders placed before 12:00 PM (noon) in the customer's local time zone typically ship the same business day. Orders shipping to Alaska or Hawaii use a 12:00 PM Pacific Time cutoff (California time). These cutoffs apply only to eligible in-stock orders and are not guaranteed shipping or delivery times. Same-day shipping refers to processing and carrier handoff, not delivery. Weekends and holidays are excluded.
Payment verification, address verification, fraud review, and inventory availability may take longer. Supplier-direct fulfillment, freight shipping, and special handling may also take longer.
Returns:
Eligible products may be returned within 60 days of delivery, subject to our Return Policy. Return authorization is required. Certain products are final sale or subject to manufacturer warranty procedures, shipping charges, and applicable restocking fees.
Please inspect your order promptly upon delivery. Shipping damage, incorrect items, missing components, or quantity shortages must be reported within 3 business days after delivery. Retain the product, original packaging, shipping labels, and photographs while your claim is reviewed.

