Guys how do I no witch one to order before I get head gasket done is there a way of telling while everything is still in place ?

There should be a little tab sticking out with the holes punched into it. Have a look around the engine where the block meets the head

1 hour ago, dilksie said:

There should be a little tab sticking out with the holes punched into it. Have a look around the engine where the block meets the head

 

 

Great would this be at the front or annoyingly at the back of the engine 

Not sure off the top of my head, got a feeling that it is on the front though