how do i tell the difference between a 2wd head and a 4x4 head any notable stamps numbers etc.

 

as you look at the head from the front on the left hand side at the top there'll be 2 lugs sticking out on the 2 w/d head whereas the 4x4 hasn't!

 

The lugs as mentioned above ,the temp sender for the gauge is located near the coolent temp sensor at the back of the head on a 4x4 ,the oil feed for the turbo is on the head in the middle of the exhaust side on a 4x4.

 

Ther eis also a early and a late 2wd head, the early one has much smaller washers under the head bolts, sapphy's(2wd) are bigger so spread the load more.
tabetha

 

cheers for that.