blown 2 head gaskets

The 8553 is a stock-ish gasket, try the 1008, or Cometic MLS. Sure the Cometics are more, but you can reuse them. 1008 will give you more comperssion as they are .039 compressed as opposed to .045 for the 8553. Check the archives, a guy ran both and stuck with the 1008's. Even talk of Detroit Performance line Gaskets being better than FelPro.