2 X SQUARE PORT 364 CASTING CYLINDER HEAD FOR HOLDEN STATESMAN WM L98 6.0L V8. Mace square port 364 casting cylinder heads are manufactured from high quality aluminium casting. This cylinder head is fully CNC machined for maximum horsepower and torque. These cylinder heads fulfill the standards and provide excellent service and durability. These heads are manufactured to precise machining tolerances. These cylinder heads suit Holden vehicles fitted with L77, L98 and LS3 V8 engines. Intake valve head diameter: 2.165. Exhaust valve head diameter: 1.59. 2 X Cylinder head. Please remember to check out our other performance products for sale. We are committed to providing the best support for our…