High Performance Valve Spring Kit for GM LT – # VSK461208-LT

GM LT Engines 5.3L, 6.2L, 6.6L (LT1, LT8, L8P, L83, L84, L86 & L87) 2014-26
High Performance Valve Spring Kit

Part # VSK461208-LT

Manufactured for GM LT Engines. Street to circle track, OEM to drag race performance, Melling valve spring kits cover the market and your requirements. Standard, mid-range, heavy-duty and race ready valve springs are available from Melling in a variety of wire sizes, materials, and spring pressures. Melling GM LT spring designs include standard and dual springs with and without dampers as well as new beehive applications. Performance valve locks, seals, retainers, seats and shims included are designed to increase performance and durability. Whatever your valve spring kit needs may be, Melling has a variety of quality valve spring kits to fit your requirements.

Features & benefits

• Performance Proven Compatibility: Ideal for performance camshaft upgrades in street/strip, drag, or track applications, ensuring reliable valvetrain control and horsepower potential
• Complete Kit Convenience: Includes matched springs, retainers, locks, shims, seats and valve stem seals—designed to work together for optimal fit, durability, and simplified installation
• Premium Materials & Heat Treatment: Manufactured from high-quality alloys and heat-treated for superior strength, fatigue resistance, and consistent performance under extreme conditions
• High-Tension Spring Rates: Engineered to handle increased cam lift and aggressive ramp rates, providing the stability needed for high-RPM performance without valve float

Kits Contains

(16) Valve Springs
(16) Valve Stem Oil Seals
(16) Valve Spring Shims
(16) Valve Spring Retainers (Titanium or Chrome-Moly Steel)
(16) Valve Spring Seals
(32) Valve Locks

GM LT “Titanium” Retainer Kits Available

VSK461208T-LT Installed Pressure 160 PSI / Open Pressure 482 PSI
VSK46656T-LT Installed Pressure 147 PSI / Open Pressure 406 PSI
VSK46673T-LT Installed Pressure 125 PSI / Open Pressure 370 PSI
VSK46659T-LT Installed Pressure 151 PSI / Open Pressure 417 PSI
VSK46697T-LT Installed Pressure 151 PSI / Open Pressure 417 PSI*
*Super Finished Valve Spring

GM LT “Chrome-Moly Steel” Retainer Kits available

VSK461208-LT Installed Pressure 160 PSI / Open Pressure 482 PSI
VSK46656-LT Installed Pressure 147 PSI / Open Pressure 406 PSI
VSK46673-LT Installed Pressure 125 PSI / Open Pressure 370 PSI
VSK46659-LT Installed Pressure 151 PSI / Open Pressure 417 PSI