G4NB Cylinder Head Assembly For Hyundai i30 Elantra Mistra Kia Forte 1.8L 11-21

G4NB Cylinder Head Assembly for Hyundai and Kia

This G4NB cylinder head assembly seals the combustion chambers and houses the valvetrain for 1.8L engines.

Overview

This G4NB cylinder head assembly restores compression and engine performance by replacing worn or cracked factory heads. Precision machined to critical tolerances, this G4NB cylinder head assembly ensures proper coolant and oil flow throughout the upper engine block. Engine builders and automotive technicians will find this G4NB cylinder head assembly to be a reliable solution for top-end rebuilds.

Built For Performance

• High-strength aluminum alloy casting for weight reduction and heat dissipation
• Precision-machined valve seats and guides for optimal sealing
• Pre-assembled with valves, springs, and seals for quicker installation
• Strict dimensional control to prevent head gasket leaks

Fits These Machines

• for Hyundai i30 1.8L (2011-2021)
• for Hyundai Elantra 1.8L (2011-2021)
• for Hyundai Mistra 1.8L (2011-2021)
• for Kia Forte 1.8L (2011-2021)

On-The-Job Use

• Replacing cracked cylinder heads caused by severe engine overheating
• Rebuilding a worn 1.8L engine to restore factory compression levels
• Replacing heads with damaged thread holes or bent valves

Specs At A Glance

Good To Know

Q: Is a new head gasket required when installing this assembly? A: Yes, always use a brand-new multi-layer steel head gasket and new head bolts to ensure a proper, leak-free seal. Torque them to the manufacturer's exact specifications.

Q: Does this cylinder head come pre-lubricated? A: While internal components may have an anti-rust coating, oil or assembly lube must be applied to the camshafts and valve stems during final engine installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.