Description:
GM Genuine Parts Engine Cylinder Head Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov
Features and Benefits:
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
- GM regularly updates production and service part designs to integrate new materials and technologies
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
Specifications:
Combustion Chamber Volume:
4.1068 Cubic in.
Combustion Chamber Volume:
67.3 Cubic Centimeters (displacement)
Exhaust Valve Diameter:
1.59 in.
Exhaust Valve Diameter:
40.4 mm
Guide Plates Included:
No
Head Casting Number:
12604863
Intake Valve Diameter:
2.17 in.
Intake Valve Diameter:
55 mm
Valve Stem Diameter:
0.314 in.
Valve Stem Diameter:
7.966 mm
