New GM Chevrolet S-10 Cavalier Sonoma 2.2L OHV Pushrod Cylinder Head – Cast #146 and #507 (1998-2003)

New GM Chevrolet S-10 Cavalier Sonoma 2.2L OHV Pushrod Cylinder Head – Cast #146 and #507 (1998-2003)

Restore the performance and reliability of your GM 2.2L OHV engine with this meticulously designed pushrod cylinder head, engineered for a flawless fit and improved efficiency.

This new cylinder head is a direct replacement for 1998–2003 GM 2.2L OHV engines. Featuring casting numbers #146 and #507, it comes fully assembled with valves and springs, optimizing airflow and combustion for smoother operation and better fuel economy.

🛠️ In-House Machining Process

• Debris-Free Preparation: Every new casting is chemically cleaned and blown out to remove all residual machining oils and manufacturing debris. This ensures your oiling system remains uncontaminated from the first start-up.
• In-House Precision Machining: We perform all final machine work in-house, including precision guide sizing and valve seat cutting to ensure perfect geometry before the head reaches the assembly bench.
• Pressure & Integrity Testing: We pressure-test every head to 60 PSI. This verifies that the casting is free of porosity leaks or internal defects that could compromise the cooling or oiling systems.
• Dimensional Inspection: Our technicians perform a multi-point inspection of the gasket-sealing surface to ensure it is perfectly flat and meets tight OEM tolerances for a flawless fit.
• Professional Assembly: Valvetrain components are installed and verified in a clean-room environment. We check spring heights and seal seating to ensure the assembly is balanced and ready for long-term use.
• Vacuum-Seal Verification: Every intake and exhaust port is Vacuum Tested to guarantee a 100% airtight seal between the valves and seats for maximum compression.

📊 Technical Specifications

• Condition: New
• Engine Compatibility: GM 2.2L OHV Pushrod
• Casting Numbers: #146 / #507
• Year Range: 1998-2003
• Assembly: Fully assembled with valves and springs
• Material: High-grade cast iron designed to meet or exceed OEM standards

🚘 Fitment Applications

Common Applications:

• Chevrolet S-10: 1998-2003 (2.2L OHV)
• Chevrolet Cavalier: 1998-2002 (2.2L OHV)
• GMC Sonoma: 1998-2003 (2.2L OHV)
• Pontiac Sunfire: 1998-2002 (2.2L OHV)
• Isuzu Hombre: 1998-2000 (2.2L OHV)