Pass. side by the heater box is a pain gotta break the heater box in half. And am pretty sure u gotta loosen the motor mounts take the driver side ones out and lift the driver side a little to clear the fire wall. And dont touch the gaskets the old melted on ones that are on there will hold more boost with studs then new ones. Unless u go and get the good 400 dollar ones from swamps.
I did not need to do anything with the motor mounts when I did mine. Split the heater box and in the front drivers side the AC pump and bracket had to come off the get to the front corner you will have to ding the fire wall heat sheld to get the back corner out to. Might as well do the valve springs while your at it.. Put rags in the head drain back holes in case you drop one of the rocker arm balls,
Cratos I'm looking at your build-up and the list of parts your running is exactly the direction I am heading. Curious what you think of your truck and how it works? Do you daily drive it? Ever run it on a dyno, i'd guess your right in the hunt for for 500HP?
I did my studs one at a time with the engine in and had to loosen the motor mounts & jack up each side. If you do it with the engine in, a few old blankets to lay on helps... the ribs take a beating. As other have said, might as well do the valve springs while you're at it. I did pushrods & valve steam seals too.
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