I am installing MAC headers on my LT1, probably this weekend. I'd just like to know a few things.

1)what is the proper part # for GM metal manifold gaskets? Is it 12550033 or 12552469?

2)What else do I need part wise, here's what I've got so far.

1)MAC 94-95 single cat headers and mac off-road pipe
2)Borla 94-95 single cat cat-back
3)o2 simulators
4)Taylor OVC wires
5)NGK TR55 plugs, do they come in platinum?
6)High temp sealant for slip joint
7)LT4 Knock module
8)New delco o2 sensors, is 25312184 the correct part#?
9)New oil filter as I believe you may have to take it off to install the headers, what's the part #?

I believe that's it. Please let me know if I have forgotten anything and please help me find the correct part #'s.

Thanks

 

#8 is correct