BTR GEN V STAGE 2 SUPERCHARGED LT4 CAMSHAFT w/ SK008 LT4 .660" Dual Spring Kit

223/24X, .641"/.644", 114 LSA

INTAKE LOBE LIFT @ TDC: 0.05052

BTR is proud to introduce these new editions to our already impressive lineup of Gen V camshafts. The new Gen V Stage 2 Centrifugal and PDS Supercharger camshaft was designed to deliver excellent power and torque everywhere in the curve. This cam works well in 5.3-6.2 combos using Centrifugal or PDS style blowers, while helping to deliver more mid-range and top end power than our Stage 1 cam. This cam offers an aggressive idle, yet is still mild enough for daily driving. Developed in house, these new BTR lobe designs were Spintron and Engine Dyno tested to achieve the highest overall power curve while also maintaining strict valvetrain stability and durability standards.

The use of BTR dual or conical spring kits is required due to high valve lift and increased rpm potential.
We also recommend the use of hardened pushrods in power adder applications.

Will require the use of an aftermarket converter for best drivability.
Includes a 38% fuel lobe and was designed to be locked out. We recommend our BTR VVT lockout bushing. "

BTR .660" PLATINUM LT4 VALVE SPRING KIT STOCK GUIDES - SK008

The BTR Platinum Spring Kit would be inducted into the LS/LT Aftermarket Hall of Fame if such a thing existed. Whether you’re putting together a daily driver with a mild cam, a 600 hp N/A stroker, or a turbocharged 1000 hp brawler, our Platinum Spring Kit will make sure your valves are right where your cam wants them to be at all times. With that said, when the Gen V LT engines came out, we knew our Platinum Springs would be right at home on the direct injection platform with the correct supporting parts. This is a drop-in kit for Gen V LT4 engines with stock style powdered metal valve guides.

Kit includes:

 • SP001-1 Platinum dual springs (qty 16)

 • SR006-8 Titanium retainers (Intake qty 8) 

 • SR008-8 Titanium retainers (Exhaust qty 8) 

 • SL520045-8 Locators 0.045" Thick (Intake qty 8)

 • SL520060-8 Locators 0.060" Thick (Exhaust qty 8)

 • VS LS KIT Valve seal kit

 • VL7°8MM-32 7 degree valve lock kit

 • SS015-1 .015" shims (Exhaust qty 8)

Spring specs:

•155 lbs @ 1.780"

•380 lbs @ 1.180"

•400 lbs @ 1.130"

•Coil bind @ 1.070"

NOTE: THE SHIMS IN THIS SPRING KIT GO UNDER THE EXHAUST LOCATOR!