Aeroflow Mitsubishi 4G63 Head Stud Kit AF37-2050 rocker cover 59" exhaust valves and have

59" exhaust valves and have a thicker than stock

Replacement O-rings and Bolts to suit Aeroflow Performance Ford Windsor Thermostat housing

Note: The 4G63 engine in its factory form has a 85mm bore and 88mm stroke

the power jumped to 63kW at the same revs - almost 60% higher than the standard

Aeroflow Mitsubishi 4G63 Head Stud Kit AF37-2050 rocker cover 59" exhaust valves and have12 Point Nuts, 8740 Grade Material, 1994 Models and up Aeroflow Performance head studs greatly improve your cylinder head to block sealing compatibilities. This is important in engines with high power adders such as turbochargers, superchargers or nitrous. They can even be a great addition to a mildly modified build as insurance against failure. All head studs provide a more accurate and consistent torque loading over traditional head bolts. These