Take into account the amount of material removed and your target compression ratio. The most popular thickness for the typical head/block cleanup is 1.5mm. More aggressive defect/warpage mill jobs or high boost applications often use the 2.0mm. ARP bolts are available for the reliable rebuild. Consult a professional engine builder if you need further/detailed assistance. The metal layers of the 1.5mm gasket are sealed, not loose as in the HKS product. The 2.0mm unit has loose layers. Note: Delivery leadime is usually longer than for the HKS product! When Greddy runs out (often) leadtimes are 2-6 weeks. TAKE THIS INTO ACCOUNT!!!

Right now these are on a national backorder!!!  We do not have any idea of when they are coming back in stock.  Please consider the use of the HKS MHG's before you order these.