5.9 build for a ....D100

Be careful with the EQ heads, be sure to pull them apart and inspect their work. I bought a set of assembled "ready for bolt on" and they weren't. All of the valve guide clearances were too tight, I stuck a valve on #4 exhaust and kissed a piston with all of 6 miles on a fresh engine that I put these heads on, "right out of the box". An expensive redo, and had to send these brand new heads thru the machine shop for a valve job.