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GM CT525 GM CRATE Cylinder Head, Assembled, 2.165 / 1.590 in Valves, 260 cc Intake, 68.4 cc Chamber, 1.290 in Springs, GM LS-Series, Each
SKU: GMP12675871
12629063 LS3 Cylinder Head Assembly Features:
Aluminum performance head
Fits any LS family engine with 4.00" bore or larger
2.165" hollow stem intake, and 1.59" solid stem exhaust valves
.550" max valve lift
As-cast L92 style 260cc intake ports
D-shaped exhaust ports
As-cast combustion chambers
Head 12615879 is assembled with the following components:
12569427 Intake Valves
10166344 Valve Spring Retainers
12582719 Exhaust Valves
12482063 Intake Valve Stem Seals
12625033 Valve Springs
12482062 Exhaust Valve Stem Seals
10166345 Valve Locks
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Chamber Volume | 68.4 cc |
Intake Runner Volume | 260 cc |
Intake Port Shape | Rectangle |
Intake Port Location | Stock |
Exhaust Port Shape | D |
Exhaust Port Location | Stock |
Intake Valve Size | 2.165 in |
Intake Valve Included | Yes |
Exhaust Valve Size | 1.590 in |
Exhaust Valve Included | Yes |
Valve Spring Included | Yes |
Intended Camshaft Style | Hydraulic Roller |
Maximum Lift | 0.550 in |
Valve Spring Retainers Included | Yes |
Valve Locks Included | Yes |
Valve Seal Included | Yes |
Valve Guide Included | Yes |
Center Mount Valve Cover | Yes |
Valve Seat Included | Yes |
Valve Seat Finish | Machined |
Combustion Chamber Finish | As Cast |
Intake Runner Finish | As Cast |
Exhaust Runner Finish | As Cast |
Intake Valve Angle | 15 Degree |
Exhaust Valve Angle | 15 Degree |
Material | Aluminum |
Color | Natural |
Finish | Natural |
Quantity | Each |