Crower 87049-12 Features:

Crower valve spring retainers, chromoly steel, 3/8 in., set of 12, part number 87049-12. 7-degree lock style with tall retainer design for performance valve spring applications. Spring fit dimensions: 1.375 in. outer OD, 1.025 in. middle OD, 0.685 in. inner ID. Adds 0.075 in. installed height; fully machined and heat-treated for strength.

Retainers Chromoly 3/8 7-Degree Tall Style, +0.075 In. Installed Features:

• Aircraft-quality chromoly steel construction for high-strength valvetrain support in demanding performance engine applications and repeated high-rpm operation
• 7-degree lock design with tall retainer profile for secure valve spring fitment and an added 0.075 in. installed height increase
• Fully machined and heat-treated retainers for enhanced durability, consistent valve spring control, and added reliability under load
• Black oxide finish helps resist rust and corrosion while maintaining long-term serviceability in street and racing engine environments
• Fits 3/8 valve applications; sized for 1.375 in. outer, 1.025 in. middle, and 0.685 in. inner spring dimensions; set of 12