Originally posted by CarFreak
Umm.... isn't R-12 illegal now? I was told by a shop teacher that it puts "harmful" gases in the air which is why they switched to the other stuff. At very least I thought you couldn't buy it anymore.


Anyway, I actually did acquire a manual and made a lot of progress this afternoon. Pretty sure(not possitive) I can get it out without removing the A/C compressor! After removing all of the hoses and minor stuff out of the way, I am near positive that I can simply pry it at one corner and lift the whole thing straight out.

I'd like to take the 340 manifold I've got and get it weighed! I bet that joker is about 50-60 pounds. And the 360 heads are even heavier. I suprised the crap out of this really old Mopar guy when I lugged em off, one in each hand.
DON'T remove your A/C! As for the intake swap, yeah, two bolts hold the compressor front mount onto the water pump. Theses also run through the timing chain cover into the block. May have to pull the fan and water pump pulley, may not hafta. Might want to save your money and either put a small cam in the 318 and a new timing chain at the same time...or go big block
R12 is no longer being manufactured, the 134a doesn't cool nearly as well. It is also illegal to dump it into the air, gotta recover it. Shop teacher is wrong, otherwise.