The engine also features an aluminum cylinder head with double overhead camshafts and variable valve timing.

The 1.8L is a dual overhead cam (DOHC) inline 4-cylinder gasoline engine capable of 148 hp (110 kW) and 125 lb⋅ft (169 N⋅m) of torque.

Applications: The 2.0L DOHC inline four-cylinder gasoline engine is capable of 158 hp (118 kW) and produces 141 lb⋅ft (191 N⋅m) of torque.

The 2.0 L Tigershark DOHC inline 4-cylinder gasoline engine has dual-variable valve timing and produces 160 hp (119 kW) and 148 lb⋅ft (201 N⋅m) of torque.

Only Multi-Air heads feature electro-hydraulic variable valve timing and lift, although only on the intake side.