is it worthit to upgrade my supra with stock turbo?

[btwilson86]

Originally Posted by fantasma87

i thought the head gasket when its replace the only thing that it have to be done is to clean realy good the old one from the block and head , then just istall the new one. man now you got me

You shave the head and the block to remove small defects, such as defects in casting or from wear. The metal head gasket is much less forgiving than an OEM styled one, which is why they require more prep work. Also, have the machine shop that shaves the head/block record how much material they removed. Add that number to the thickness of the compressed OEM gasket, and look for the MHG that's closest to that thickness. This way you are able to maintain the stock compression ratio