Jims Valve Spring Kit - Evolution - Big Twin, DS-199525

Brand new, Jims Valve Spring Kit - Evolution - Big Twin. NOTE: This is a generic image. Items shown are not included.

• Incorporate an interference double-spring design with a damper to control harmonics
• Engineered for maximum performance in severe applications such as high compression and big-inch street motors
• Kits include locks, retainers and spring seats
• Made in the U.S.A.

SKU# DS-199525

Fits:

Please verify your own fitment before purchase.