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Premium Valve Spring Kit and Rocker Arm Bundle
$ 878.73

$ 950.97

Premium Valve Spring Kit and Rocker Arm Bundle


Only left in stock

Act now and save 5% plus get FREE Black Label rocker bolts when you buy our Premium Valve Spring Kit bundled with the Mast Rocker Arms with CHE high-performance trunnions.

 The Mast Spring Kit

Mast Motorsports prides itself on never cutting corners, only using premium materials and components. This complete kit comes with everything needed to retrofit and enhance your cylinder heads for up to increased valve lift & higher RPM

About our Spring Kits:

• Manufactured in the USA
• Premium Chrome Silicon Vanadium Spring Wire
• Polished Isotropic Super Finishing & Cryo Treated
• Titanium 6AL4V Grade 5 titanium retainers
• Machined Chrome Moly Valve Locks
• Machined & Hardened and Black Oxide Precision Spring Seats
• Premium Valve Guide Seals
• Carefully Curated for all the RPM’s and Durability you require