How should a Cylinder Head be prepared for reassembly after valve servicing on Chevrolet Blazer?

Regardless of whether a head was sent to an automotive repair shop for valve servicing, ensure it is clean before beginning reassembly. If a head was sent out for valve servicing, the valves and related components will already be in place, so start the reassembly procedure with the first valve. Lubricate and install the first valve by applying engine assembly lube or clean engine oil to the valve stem. For a four-cylinder engine, install the spring seats over each of the valve guides and new seals on the valve guides for the intake valve only on the V6 engine. Gently tap each seal into place using a hammer and a deep socket or seal installation tool, ensuring they are not twisted or cocked during installation. Set the valve springs, oil shield for the V6 engine intake valve only, and retainer or rotator for the V6 engine exhaust valve in place. Compress the springs with a valve spring compressor and carefully install the O-ring oil seal in the lower groove of the valve stem for the V6 engine, ensuring it lies flat and is not twisted. Position the keepers in the upper groove, then slowly release the compressor to ensure they seat properly, applying a small dab of grease to hold them in place if necessary. Repeat the procedure for the remaining valves, ensuring all components are returned to their original locations without mixing them up. Check the installed valve spring height with a ruler graduated in 1/32-inch increments or a dial caliper, measuring from the top of each spring seat or shim(s) to the top of the oil shield or the bottom of the retainer. If the height exceeds specifications, shims can be added under the springs to correct it. Finally, apply engine assembly lube to the rocker arm faces and pivot balls, then install the rocker arms and pivots on the cylinder head studs, threading the nuts on three or four turns only, as they will be tightened following a specific procedure when the heads are installed on the engine.

Genuine Chevrolet Blazer Cylinder Head

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26 Cylinder Heads found

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Chevrolet Blazer Cylinder Head Assembly With Valve
Part Number: 12684222
$721.27 MSRP: $1193.49
You Save: $472.22 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Head Assembly, Cyl (W/ Vlv); Cylinder Head
- Replaces: 12668131
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2024 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 6 Cyl 3.6L
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Chevrolet Blazer Head Assembly, Cyl (W/ Vlv)
Part Number: 12686233
$289.09 MSRP: $478.46
You Save: $189.37 (40%)
ADD TO CART
Product Specifications
- Other Name: Cylinder Head
- Replaces: 12679109, 12679457, 12677521, 12668132, 12673745
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2024 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 6 Cyl 3.6L
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Chevrolet Blazer Cylinder Head Assembly With Valve
Part Number: 55504792
$468.88 MSRP: $776.03
You Save: $307.15 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Head Assembly, Cyl (W/ Vlv); Cylinder Head
- Replaced by: 12729488
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2024 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 4 Cyl 2.0L
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Chevrolet Blazer Engine Cylinder Head
Part Number: 12555630
$447.07 MSRP: $713.03
You Save: $265.96 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Head,Cyl; Cylinder Head
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2005 Chevrolet Blazer | 2 DOOR, 4 DOOR | 6 Cyl 4.3L
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Chevrolet Blazer Cylinder Head Assembly
Part Number: 12558112
$596.22 MSRP: $803.53
You Save: $207.31 (26%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Head Assembly, Cyl ; Head, Engine Cylinder; Cylinder Head
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 Chevrolet Blazer | 2 DOOR, 4 DOOR | 6 Cyl 4.3L
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Chevrolet Blazer Cylinder Head (W/Studs)
Part Number: 10065219
$136.21 MSRP: $1039.79
You Save: $903.58 (87%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Head,Cyl (W/Studs); Cylinder Head
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1989 Chevrolet Blazer | 1/2 TON
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Chevrolet Blazer Cylinder Head
Part Number: 10065202
$395.07 MSRP: $734.23
You Save: $339.16 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Head,Cyl
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1988 Chevrolet Blazer | 1/2 TON | 8 Cyl 5.0L, 8 Cyl 5.7L
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Chevrolet Blazer Cylinder Head Assembly
Part Number: 12523500
$849.60 MSRP: $1130.09
You Save: $280.49 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Head Asm,Cyl ; Head, Engine Cylinder
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Chevrolet Blazer | 1/2 TON
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Chevrolet Blazer Cylinder Head Assembly (W/Studs)
Part Number: 12533558
$310.73 MSRP: $491.12
You Save: $180.39 (37%)
Product Specifications
- Other Name: Head Asm,Cyl (W/Studs)
- Replaces: 12533134
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 Chevrolet Blazer | 2 DOOR, 4 DOOR | 6 Cyl 4.3L
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Chevrolet Blazer Cylinder Head & Stud Kit, 4.3Z
Part Number: 12520274
Product Specifications
- Other Name: Cylinder Head
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992 Chevrolet Blazer | 1/2 TON | 6 Cyl 4.3L
- 1985-1988 Chevrolet Blazer | 1/2 TON | 6 Cyl 4.3L
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Chevrolet Blazer Head Assembly, Cyl (W/ Vlv)
Part Number: 12690422
$796.64 MSRP: $1027.88
You Save: $231.24 (23%)
Product Specifications
- Other Name: Cylinder Head
- Replaces: 12686736, 12648916, 12627152, 12680557, 12666599
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Blazer | L 4 DOOR SUV, LT 4 DOOR SUV | 4 Cyl 2.5L
View related parts
Chevrolet Blazer Cylinder Head Assembly
Part Number: 12522533
Product Specifications
- Other Name: Head Asm,Cyl ; Head, Engine Cylinder; Cylinder Head
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Chevrolet Blazer | 1/2 TON | 8 Cyl 6.5L Diesel
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Chevrolet Blazer Cylinder Head & Stud Kit, 4.3W
Part Number: 12518291
Product Specifications
- Other Name: Cylinder Head
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1993 Chevrolet Blazer | 1/2 TON | 6 Cyl 4.3L
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Chevrolet Blazer Cylinder Head & Stud ASSEMBLY
Part Number: 10159551
Product Specifications
- Other Name: Cylinder Head & Stud Asm; Cylinder Head
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1994 Chevrolet Blazer | 1/2 TON
View related parts
Chevrolet Blazer Cylinder Head Assembly
Part Number: 12562922
Product Specifications
- Other Name: Head Asm,Cyl; Cylinder Head
- Replaces: 10101136
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1993 Chevrolet Blazer | 1/2 TON
View related parts
Chevrolet Blazer CYLINDER HEAD KIT COMPLETE (W/BALL & NUT) (REMANUFACTURE)
Part Number: 12498297
Product Specifications
- Other Name: Head Kit,Cyl(Complete) W/Ball & Nut (Remanufacture) ; Head, Engine Cylinder; Cylinder Head
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Chevrolet Blazer | 1/2 TON, 2 DOOR, 4 DOOR | 6 Cyl 4.3L
View related parts
Chevrolet Blazer Cylinder Head & Stud ASSEMBLY
Part Number: 10159550
Product Specifications
- Other Name: Cylinder Head & Stud Asm; Cylinder Head
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1994 Chevrolet Blazer | 1/2 TON | 8 Cyl 5.7L
View related parts
Chevrolet Blazer Engine Cylinder Head
Part Number: 12562923
Product Specifications
- Other Name: Head,Cyl ; Head, Engine Cylinder; Cylinder Head
- Replaces: 10191655
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Chevrolet Blazer | 1/2 TON
View related parts
Chevrolet Blazer Cylinder Head & Stud ASSEMBLY
Part Number: 12516852
Product Specifications
- Other Name: Cylinder Head & Stud Asm ; Head, Engine Cylinder; Cylinder Head
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1991 Chevrolet Blazer | 1/2 TON | 8 Cyl 5.7L
View related parts
Chevrolet Blazer Cylinder Head
Part Number: 14079336
Product Specifications
- Other Name: Head,Cyl
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1991 Chevrolet Blazer | 1/2 TON | 8 Cyl 6.2L Diesel

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1-20 of 26 Results

Chevrolet Blazer Cylinder Head

The Chevrolet Blazer Cylinder Head is the rooftop engine that sends in fresh air fuel mixture, vents exhaust gases out, and seals cylinders so each spark delivers power. Built primarily of aluminum, this Cylinder Head reduces weight, releases heat quickly, and allows the updated versions of the Blazer to operate at higher compression levels for greater punch. However, on the previous iron versions, heads were heavier and took longer to cool. Modern Chevrolet engines hold the Cylinder Head using torque-to-yield bolts that stretch out to spread even clamping to protect the gasket against leaks that lead to misfires, overheating, or oil and coolant cross-contamination. Worn guides, valves, seats, or springs inside the Cylinder Head can burn a valve and leave a dead cylinder. Cracks or warpage invite combustion or fluid leaks. To increase horsepower, builders smooth and make ports larger, a process that the reinforced aluminum casting survives better than factory iron. Each healthy Cylinder Head helps to keep the air flowing fast, pressures in check, and temperatures in check so that every Blazer delivers reliable performance and the unmistakable Chevrolet drive feel.

Each OEM Chevrolet Blazer Cylinder Head we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Blazer Cylinder Head Parts Questions & Experts Answers

Cylinder Head Assembly (W/Studs)
12533558
Q: How should a Cylinder Head be prepared for reassembly after valve servicing on Chevrolet Blazer?
A:
Regardless of whether a head was sent to an automotive repair shop for valve servicing, ensure it is clean before beginning reassembly. If a head was sent out for valve servicing, the valves and related components will already be in place, so start the reassembly procedure with the first valve. Lubricate and install the first valve by applying engine assembly lube or clean engine oil to the valve stem. For a four-cylinder engine, install the spring seats over each of the valve guides and new seals on the valve guides for the intake valve only on the V6 engine. Gently tap each seal into place using a hammer and a deep socket or seal installation tool, ensuring they are not twisted or cocked during installation. Set the valve springs, oil shield for the V6 engine intake valve only, and retainer or rotator for the V6 engine exhaust valve in place. Compress the springs with a valve spring compressor and carefully install the O-ring oil seal in the lower groove of the valve stem for the V6 engine, ensuring it lies flat and is not twisted. Position the keepers in the upper groove, then slowly release the compressor to ensure they seat properly, applying a small dab of grease to hold them in place if necessary. Repeat the procedure for the remaining valves, ensuring all components are returned to their original locations without mixing them up. Check the installed valve spring height with a ruler graduated in 1/32-inch increments or a dial caliper, measuring from the top of each spring seat or shim(s) to the top of the oil shield or the bottom of the retainer. If the height exceeds specifications, shims can be added under the springs to correct it. Finally, apply engine assembly lube to the rocker arm faces and pivot balls, then install the rocker arms and pivots on the cylinder head studs, threading the nuts on three or four turns only, as they will be tightened following a specific procedure when the heads are installed on the engine.