This might be a repeat but i searched and found nothing. I am doing a PI swap with cnc ported and polished heads, Trickflow upper plenum with a stock 2002 lower, and BBK long tubes in my 98. What all do i need as far as Head Gaskets, Header Bolts, and stuff like that?
Head Changing Kit - M-6067-D46 – Good for 99-04 Heads
The head changing kit can save you some money. It includes head gaskets (older gen. 7 style), head bolts, exhaust manifold gaskets, oil dipstick tube, and head bolt bushings that help you install the heads in the engine bay. It keeps the head bolts from protruding past the bottom of the head while installing. Easily removed and easier to use. I had no issues with it.
But, it does not have everything you need, though you could get away with it.
Technically the only gaskets that NEED to be new are the headgaskets.
You do not need the spark plug wires, that was just a bonus if you wanted too...
The only new bolts you need are head bolts. For your BBK Longtubes they may come with new bolts, if so, use them. If not, reuse your stockers, good luck!