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Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Part TypeCylinder Head
BrandCHEVROLET PERFORMANCE
Package Width221.7
Package Length510.1
Part CategoryPerformance Parts
Valve Stem Diameter (Mm)8.73
Push Rod Diameter0.375
Valve Stem Diameter (In)0.3437
Head Casting Number12562934
MaterialCast Iron
Intake Valve Diameter2.18
Deck Thickness0.375
Valve Angle (Deg)24
Rocker Stud Diameter (In)0.4375
Deck Height9.8
Guide Plates IncludedNo
Combustion Chamber Volume118
Rocker Stud Diameter (Mm)11.113
Intake Runner Volume325
Valve Spring Diameter39.37
Part FitmentSemi Universal
Grade TypePerformance
Exhaust Valve Diameter1.88
Vendor Part Number12490477
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
