I have a generic question regarding broken manifold bolt at rear of head. Unable to access the area without removing the manifold and possibly the head. I have heard of guys using DOTCO 90 right angle drills at a low rpm to get into those otherwise unreachable places. At 600-1000, rpm, drill a series of three holes, each getting bigger, until you can insert an ez out and back out the broken bolt. If this does not work, remove the manifold and possibly the heads. Has anyone ever tried this? The cost of a used DOTCO 90 is anywhere from $100 to $300. Used, they are between $500 and $700, depending on the model and rpm.

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's