Fitment：

For Chevy GMC LS 5.3 5.7 .585"

For LS1, LS2, LS3, LS6, LS7, LS9 LSX Engines
For 1999-2002 Camaro and Firebird
For 2010-2013 Camaro
For 1999-2013 Corvette
For 2004-2006 Pontiac GTO
For 2004-2007 Cadillac CTS-V
For 2008-2009 Pontiac G8
For 2000-2013 Tahoe, Yukon, Escalade
For 2003-2009 H2 Hummer
For 1999-2013 Silverado and Sierra (4.8L, 5.3L, 6.0L)

Description：

-Head Gasket Bolts Set For 04-14 Cadillac Chevrolet GMC Buick 4.8 & 5.3 OHV. The head gasket is the key component of the engine. It is compressed between the engine block and the cylinder head. The head gasket seals in the internal combustion process to make sure maximum compression is achieved and also keeps coolant and oil from mixing together as the two fluids travel from the engine block to the cylinder head. Time will come that your head gasket will leak or blow. The cylinder head bolts hold the cylinder head and cylinder head gasket in place and ensure that the cylinder head will continue to hold up despite the tremendous amounts of pressure in the combustion chamber. Therefore the cylinder head bolts, and cylinder head gasket are an important part of your engine. They should always be in perfect condition and should be maintained properly. So, if you notice that this part is showing signs of excessive wear, have them replaced immediately. Be sure to have your engine gaskets, and head bolts replace with aftermarket replacement head gasket bolts set as soon as it starts to give you trouble.

-Remark: The valley pan gasket in this does NOT fit on engines with Active Fuel Management (A.F.M.) system. These engines have two different designs for the head bolts. 1st design head bolts have 16 Long Bolts: 150mm, 4 Short Bolts: 100mm, 10 Small Bolts: 45mm. 2nd design head bolts have 20 Long Bolts: 100mm, 10 Small Bolts: 45mm. This kit ONLY FITS engine with 2ND DESIGN HEAD BOLTS (20 long bolts: 100mm, 10 small bolts: 46mm). Please double check your engine head bolts to make sure this kit will fit your engine before making the purchase.

This is a 3-bolt cam (Gen III LS), if you have a single bolt cam (Gen IV LS) you will need to purchase 3-bolt cam gear conversion kit.Not compatible with Active Fuel Management (AFM). Custom computer tuning required.Automatic's will perform best with a 2,600-2,800 Stall Converter. 

-Camshaft Type: Hydraulic Roller
-RPM Range: 2200 to 5400 RPM
-Intake Valve Lift: .585"
-Exhaust Valve Lift: .585"
-Advertised Intake Duration: 283°
-Advertised Exhaust Duration: 286°
-Intake Duration @ .050": 228°
-Exhaust Duration @ .050": 230°
-Lobe Separation: 112°
-Intake Centerline: 108°
-Cam Gear Attachment: 3-Bolt

-Usage: Performance
-Notes: Not for use with AFM/DOD

-.560"Springs Set:
-100 lbs @ 1.800"
-285 lbs @ 1.240"
-Coil Bind @ 1.150”
-560" Max Lift
-Beehive design
-Works with stock retainers & locks

-Valve Lifter Set: 16pcs HL-124 Valve Lifters

Package Included:
Cam Camshaft For Chevy x1
Bee Hive Valve Springs x16
valve seals x16
Guides x4
Lifters x16
Bolts x4
Filter x1
Multiple Layers Steel (MLS) Head Gasket
Valve Cover Gasket
Valve Stem Seals
Intake Manifold Gasket Metal Upgraded)
Exhaust Manifold Gasket
Front Camshaft Seal
O-rings
Other Small Gaskets
30 Cylinder Head Bolts (20 Long Bolts: 100mm, 10 Small Bolts: 45mm)

W/o Product Instruction