FMBP VSK461219T Engine Valve Spring Kit

Performance valve spring kit for GM applications

This Melling Performance valve spring kit, part number VSK461219T, is built for hydraulic roller camshaft applications that need controlled valve motion and higher spring pressure. It fits a wide range of Chevrolet, GMC, Cadillac, Pontiac, Buick, Hummer, Saab, Isuzu, and Avanti applications, including Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Corvette.

Key features

• Single-spring design with performance-grade construction
• Installed height: 1.800 in. / 45.72 mm
• Installed pressure: 135.0 lb
• Open pressure: 348.0 lb
• Hydraulic roller camshaft compatibility
• Includes titanium retainers, valve locks, and valve stem seals

Detailed product overview

Part number VSK461219T is a Melling valve spring kit engineered for street, circle track, and drag race use where stable valve control matters. The kit is specified with a 1.102 in. coil bind height, 1.175 in. spring open height, 0.885 in. inside diameter, and 1.307 in. outside diameter. Its performance spring rate and included titanium retainers, locks, and seals support valvetrain durability in compatible GM V8 and performance applications.

Fitment includes 1997-2004 Chevrolet Corvette, 1999-2013 Chevrolet Silverado 1500, 2000-2014 Chevrolet Tahoe, 2000-2014 GMC Yukon, 2008-2010 Hummer H3, and 2004-2007 Buick Rainier, among many others. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common issues this part addresses

• Valve float at higher engine speeds
• Inconsistent valve control under performance use
• Spring fatigue in upgraded valvetrain setups
• Wear at the valve stem seal area
• Reduced durability in demanding hydraulic roller applications

Installation notes and quality

Verify installed height, coil bind clearance, and spring pressure before assembly. Confirm camshaft type and valvetrain geometry during setup, especially on modified engines. This kit is intended for direct use in the listed applications and is backed by Melling’s performance-focused spring kit lineup.