opie90
+1y
You can't swap heads It will run but then when the motor gets on a pull it will crack the pistons. Valves hit. You might clear with like a .010 shim Gasket but I don't I would try it.
But you can put the 2.3 intake on the 2.6 head I have done that and placed the 2.6 intake on a 2.3 and MPFI the 2.3