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Heater hose routing help needed

pearljam724

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69 Coronet - Gonna be a lot cooler soon. I want to hook up heater hoses that weren’t in my car when I bought it. Due to engine swap only, I’m hoping. I’ve googled a lot of images of heater hose hook ups on these cars and quite a few are different at the firewall. I have 6 hose connectors and have no clue which to use. It’s an ac car, but also not in use. I understand where the block connections go. But, can I get help on the firewall please. I numbered the connectors to make getting help easier. Appreciate it.

B3692C5A-3606-47D8-84D1-392200E6B4A8.jpeg
 
From the pump supply fitting - which is closest to the valley pan rail I believe, - Inlet connects at 4, 3 is a short loop to connect at 2, then 1 is the return to the pump. Hard to make out in your pic, but 5 & 6 would be the evaporator, aka liquid line and suction for the A/C.
 
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Took me 15 mins because didn't see heat cool because I did scroll down to section 24. This for a 318, you did say which engine you have.
aa318.JPG
 
Took me 15 mins because didn't see heat cool because I did scroll down to section 24. This for a 318, you did say which engine you have.View attachment 837789
Thank you, gentlemen. Yes, it’s a small block 360. No different than the original 318 the car came with. I asked because I have seen the loop as Demonic mentioned. But, some pictures I found didn’t have the loop.
 
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From the pump supply fitting - which is closes to the valley pan rail I believe, - Inlet connects at 4, 3 is a short loop to connect at 2, then ! is the return to the pump. Hard to make out in your pic, but 5 & 6 would be the evaporator, aka liquid line and suction for the A/C.
Thank you, greatly. So number 1 is return to pump ? You are right about 5 and 6. They are much larger connections, about 1 inch in diameter.
 
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