This is the Ultimate Valve Spring Upgrade kit for your 2026+ Mustang Dark Horse SC 5.2L Supercharged. Perfect for Street or Race use.
Direct drop in, no modifications needed.
Kit Inlcudes:
32 Beehive Style Super finished/shotpeened Springs
32 PAC Titanium Spring Retainers
32 Genuine Ford Valve Seals
32 Upgraded Valve Locks / Keepers
