dzldoctor
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- Joined
- May 25, 2011
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Do you guys install the head studs without pulling the engine down on the 6.4? Got a guy that wants studs and I wouldn't do it on a 6.0 without pulling the heads off, but is a 6.4 ok. Has tuned the truck about a 250 tune but wants more, no signs of puking at this time.