250 292 EGR Plugs Head
The correct plugs for the large EGR holes above the exhaust ports on the head. These are NOT pipe plugs.
Set of 6 NEW plugs
There are 3 sizes.
Measure the diameter inside of the threaded hole.
.410 The early heads used a 1/2" diameter ( about the size of tip of pinky finger) These are steel
.500 Commonly used in integral head engines 5/8 OD
.635 Later model has much larger plugs 3/4" ( size of tip of thumb) These are brass