Mercury Mountaineer Engine Cylinder Head Replacement

For vehicles with the 4.0L SOHC 6-cylinder engine. This part is for vehicles without flex fuel.

Mileage: 145,000 miles

For vehicles with the 4.0L SOHC engine (6-245). Fits vehicles without flex fuel capability.

Mileage: 180,000 miles

Mileage: 1,258,300 miles

Mileage: 132,400 miles

It is designed for vehicles that use 16mm spark plugs and black coil boots.

Mileage: 167,400 miles

Mileage: 151,700 miles

It is designed for use with 16mm spark plugs and black coil boots.

It is designed for engines using 12mm spark plugs (brown coil boot).

Mileage: 159,000 miles

Complete 170cc/60cc Intake/Exh. Port Vol. 325-500HP Standard Exh. Port 60cc Chamber Vol. 1.90 in. Intake Valve/1.60 in. Exh. Valve Single Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ 1.90 in. Intake Valves Are For Use With Stock Pistons~ High Flow 2.02 in. Intake Valves Are For Pistons Notched For V. Clearance~ Designed For Non-Emissions 289/302/351W Ford Engines~ Max Perf. In 1500-6500 rpm Range For High Perf. Street Applications

Complete 190cc/60cc Intake/Exh. Port Vol. 375-500HP Standard Port 60cc Chamber Vol. 2.02 in. Intake Valve/1.60 in. Exh. Valve Single Legal For Use On Pre-Pollution Controlled Vehicles Designed For The Engine Swap Market~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ 1.90 in. Intake Valves Are For Use With Stock Pistons~ High Flow 2.02 in. Intake Valves Are For Pistons Notched For V. Clearance~ Designed For Non-Emissions 289/302/351W Ford Engines~ Max Perf. In 1500-6500 rpm Range For High Perf. Street Applications

Complete 170cc/60cc Intake/Exh. Port Vol. 300-450HP Std. Exh. Port 60cc Chamber Vol. 1.90 in. Intake Valve/1.60 in. Exh. Valve Single Legal For Use On Pre-Pollution Controlled Vehicles Designed For The Engine Swap Market~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ High Flow 2.02 in. Intake Valves Are For Pistons Notched For V. Clearance~ Designed For Non-Emissions 289/302/351W Ford Engines~ Max Perf. In 1500-6500 rpm Range For High Perf. Street Applications

Complete 190cc/60cc Intake/Exh. Port Vol. 325-500 HP Standard Port 60cc Chamber Vol. 2.02in. Intake Valve/1.60in. Exh. Valve Single Legal For Use On Pre-Pollution Controlled Vehicles Designed For The Engine Swap Market~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ 1.90 in. Intake Valves Are For Use With Stock Pistons~ High Flow 2.02 in. Intake Valves Are For Pistons Notched For V. Clearance~ Designed For Non-Emissions 289/302/351W Ford Engines~ Max Perf. In 1500-6500 rpm Range For High Perf. Street Applications

A356 T6 Aluminum; High Flow Ports; 20 Deg. Inline Valves; 63cc CNC Combustion Chamber; 204cc Intake Port/85cc Exhaust Port Volume;Racing Use Only

Aluminum; For Use w/302/351W; Bare; 63cc CNC Combustion Chamber; 1 pc.;Racing Use Only

Complete Max HP Level 350-500 Exhaust Port Standard Chamber Size 59cc Valve Sizes 2.02 in. Intake/1.57 in. Exhaust Valve Single Legal For Use On Pre-Pollution Controlled Vehicles Equipped w/Springs For Use in Mech. Flat Tappet/Hyd. Roller Camshaft Apps~ Designed For The Engine Swap Market~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Or Race Use Or Engine Swaps

Complete 170cc-60cc Intake/Exhaust Port Vol. 200-400HP Standard Exh. Port 60cc Chamber Vol. 1.90 in. Intake Valve/1.60 in. Exhaust Valve Pair Legal For Use On Pre-Pollution Controlled Vehicles Designed For The Engine Swap Market~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps

Complete 170cc/60cc Intake/Exhaust Port Vol. 200-400HP Standard Exh. Port 60cc Chamber Vol. 2.02 in. Intake Valve/1.60 in. Exh. Valve Pair Off Road Use Only Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps

Z-Head; Aluminum; Assembled Heads; 63 cc CNC Combustion Chamber; 204 cc Intake Port/Exhaust 85 cc;Racing Use Only

Complete 205cc/62cc Intake/Exh. Port Vol HP 400-535 Std. Exh. Port Chamber Vol. 60cc 2.08 in. Intake/1.60 in. Exh. Valves Pair Legal For Use On Pre-Pollution Controlled Vehicles For Use In Hydraulic Flat Tappet Camshaft Applications~ Designed For The Engine Swap Market~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Or Race Use Or Engine Swaps

Aluminum; For Use w/302/351W; Assembled Heads; 63cc with 7mm valve CNC Combustion Chamber; 1 pc.;Racing Use Only

Complete 205cc/62cc Intake/Exh. Port Vol HP 400-535 Std. Exh. Port Chamber Vol. 60cc 2.08 in. Intake/1.60 in. Exh. Valves Pair Legal For Use On Pre-Pollution Controlled Vehicles Equipped w/Springs For Use in Mech. Flat Tappet/Hyd. Roller Camshaft Apps~ Designed For The Engine Swap Market~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Or Race Use Or Engine Swaps