GM Genuine Parts Cylinder Head with Valves
OE
Pack of 1

GM Genuine Parts Cylinder Head with Valves

GM Part #12691720

MSRP$1,140.37*

GM Genuine Parts Engine Cylinder Head Assemblys are designed, engineered, and tested to rigorous standards, and are backed by General Motors.

  • Sits on top of the cylinder block forming the combustion chamber
  • Has ports for fuel and air mixture to travel to the inlet valves to enter the cylinder
  • Has ports for the exhaust gases to travel from the exhaust valves to exhaust manifold

Pack of 1

About this product

GM Genuine Parts Engine Cylinder Head Assemblys are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These assemblies sit on top of the cylinder block and form the combustion chamber. Air and fuel enter the cylinder and exit as exhaust from the exhaust valves and travel to the exhaust manifold.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).

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  • Sits on top of the cylinder block forming the combustion chamber
  • Has ports for fuel and air mixture to travel to the inlet valves to enter the cylinder
  • Has ports for the exhaust gases to travel from the exhaust valves to exhaust manifold
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies

Product Specifications

Width7.83 in / 199 mm
Length19.96 in / 507 mm
ClassificationOE
Exhaust Valve Diameter1.5 in / 38.1 mm
Intake Valve Diameter1.94 in / 49.28 mm
MaterialCast Iron
Valve Spring Diameter31.52mm
Valve Stem Diameter0.34 in / 8.67 mm

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Before purchasing and installing a engine cylinder head assembly, make sure it is the correct fit for your vehicle

  • Keep coolant level full
  • Do not run the engine if overheated
  • Keep oil changed and oil level full
  • Have vehicle serviced if check engine light comes on
  • Regularly inspect engine cylinder head assembly for signs of damage or wear, and replace them if signs of damage are found

Signs of wear for engine cylinder head assemblies include but are not limited to:

  • Engine misfire
  • Odor and white smoke out of exhaust is a sign of coolant leaking into the cylinders
  • Stains on engine or puddles under engine from oil or coolant leaks
  • Coolant or oil levels low

ModelBody StyleTrimYear(s)
C15001988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
C1500 Suburban1992, 1993, 1994, 1995
C25001988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
C2500 Suburban1992, 1993, 1994, 1995
G15001987, 1988, 1989, 1990, 1991, 1992, 1993

Frequently Asked Questions

A: Yes. Always consult the Vehicle Owner’s manual or an expert technician before making any repairs or adjustments.

A: Yes, bolts should be torqued to manufacturer’s specs.

A: Yes, they are durable but if the engine overheats they can crack or warp.

A: No, it could be a bad head gasket. The head should be tested while it is off to change the gasket.