KIBBLEWHITE Valve Spring Kit - XL 20-20440

Valve spring degradation is one of the most common culprits behind loss of compression, misfires, and reduced engine performance—especially in high-revving or modified applications. The KIBBLEWHITE Valve Spring Kit restores your engine's ability to control valve timing with precision, ensuring reliable sealing and consistent power across the RPM range. Built with OE-equivalent geometry and premium materials, this kit delivers the durability and performance you need without compromise.

Whether you're refreshing a stock engine or maintaining a performance build, this KIBBLEWHITE kit is engineered to match or exceed factory specifications while offering the longevity that matters on the track or the street.

• Dual chrome silicon springs
• Heat-treated steel washers
• .415" valve lift
• Steel retainers included
• OE-style geometry
• MPN: 20-20440
• Made in U.S.A.
• Bolt-on installation