87 cylinders are 5 studs and so is the head and the 88-90 has a 6 stud cylinder & head so 87 cylinders ONLY work with 87 heads.

If you have an 88 cylinder you can use a 88, 89, 90 head on it as they are all the same.


I would recommend here or ebay for a 88, 89, or 90 head to match your 88 Cylinder.