Cylinder Head Style:Assembled
Cylinder Head Material:Aluminum
Cylinder Head Finish:Natural
Combustion Chamber Volume (cc):69
CNC-Machined Combustion Chamber:Yes
Intake Runner Volume (cc):255cc
Exhaust Runner Volume (cc):87cc
CNC-Machined Intake Runner:Yes
CNC-Machined Exhaust Runner:Yes
Combustion Chamber Style:Heart
Intake Port Shape:Square
Intake Port Location:Standard
Exhaust Port Shape:Oval
Exhaust Port Location:Standard
Spark Plug Style:Angle
Intake Valves Included:Yes
Intake Valve Diameter (in):2.165 in.
Exhaust Valves Included:Yes
Exhaust Valve Diameter (in):1.600 in.
Valve Springs Included:Yes
Maximum Valve Lift (in):0.650 in.
Outside Diameter of Outer Spring (in):1.300 in.
Damper Spring Included:No
Number of Springs Per Valve:Dual
Lock Style:7 degree
Valve Stem Seals Included:Yes
Rocker Arm Studs Included:No
Rocker Arms Included:No
Rocker Arm Nuts Included:No
Guideplate Pushrod Size:5/16 in.
Accessory Bolt Holes Drilled:Yes
Intake Valve Angle:12
Exhaust Valve Angle:12
Valve Guides Included:Yes
Valve Guide Material:Powdered metal
Valve Seats Machined:Yes
Valve Seat Machine Style:3-angle
Valve Seat Material:Ductile iron
Steam Holes Drilled:No
Oiling Style:Through pushrod
Machined for O-Ring:No
Notes:Includes new rocker arm rail mounts for use with LS3 1.7 ratio rocker arms. OEM rocker arm rail mounts will not work with these heads. Does not fit 2010 and later Chevrolet Camaro OEM exhaust manifolds; aftermarket headers are required.