5.9 build for a ....D100

volaredon said

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.

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thanks for the warning! Always great to hear real life experiences. I got these heads second hand, but they have never been run or installed. They do not have the bronze guides that some of the shops used, but the guides were all reamed. Jack Barna from Valley performance did the valve 2.02 valve installation and head prep. I had called him to find out the details before I bought them from the seller. I still might get a second look on them to hopefully avoid an issue like you shared!