Blitz LS3 Performance Valve & Spring Kit

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Blitz .660 Platinum Spring Kit "LS3" Spring specs are 155 lbs @ 1.780", 380 lbs @ 1.180", 400 lbs @ 1.130, coil bind @ 1.070" This is a drop in spring kit for all 15 degree LS head s including LS1 LS2 LS3 LS4 LS6 L76 L92 L99 LQ4 LQ9 L33 LSA Blitz SS Super-Loy Intake & Exhaust Valves "LS3" Blitz Stainless Steel Valves are designed for high RPM engines using aggressive roller cams of today. Each valve is forged from 21-4N stainless and chemically quenched for increased tensile and yield strength. The forging is machined on CNC Lathes to exacting tolerance holding concentricity to .0002”. Each valve is hard chromed to prevent premature wear in the valve guide. These valves can be used in both iron and manganese guides. Blitz SS Super-Loy Valve Specs “Intake valve” Diameter: 2.165" Weight: 112gr Length: 4.900” Stem O/D: 8.0mm Install Height: Stock Tip: .160” Angle: 45 degree Angle swirl back cut: 10/.295 “Exhaust Valve” Diameter: 1.6" Length: 4.930” Weight: 90gr Stem O/D: 8.0mm Install Height: Stock Tip: .160” Angle: 45 degree Angle swirl back cut: 25/.375 Items included in purchase: (8) Blitz SS Super-Loy LS3 2.165” intake valves. (8) Blitz SS Super-Loy LS3 1.6” exhaust valves. (1) Blitz .660" Platinum Spring Kit: (16) Springs, (16) Retainers, (16) Locks, (16) locators, (16) Valve Guide Seals "Installation Notes": These parts are for a direct drop in replacement for OEM LS3 / L93 heads. Show more