B_Mack15

iTrader: (5)

I was curious if anyone who had done an LS swap in an LT1 fbody and swapped over all the AC parts

Akira Hunter

From what I understand, if you use an LS AC Compressor, the LT line with a small bit of massaging will bolt right up to the LS compressor. So you can keep all the LT lines and such in. I'll be doing this within the next coming months.

1964SS

iTrader: (1)

Holley sells AC compressor brackets for your older style compressor. Then there's nothing changed on your old system at all.

B_Mack15

iTrader: (5)

I'll do some research on that tonight..


any idea what part this is... I'm pretty sure it is different on LS cars.

rngilliland

Expansion valve. I think later model LT1, and all LS1 cars, used an orifice tube instead.

B_Mack15

iTrader: (5)

Is it possible to swap out the expansion valve and use an orifice tube?

B_Mack15

iTrader: (5)

I'm looking for this part

rngilliland

Using the parts manual it looks like you would have to swap the evaporator to the LS1 type to use an orifice tube. The part in your photo appears to be part of the evaporator, not a separate part. It would probably be easier to use the expansion valve and LT1 lines, if the lines fit the new compressor.

sierravmax

iTrader: (1)

From my experience the stock Lt1 lines should work fine with headers and a little tweaking. They bolt on to the Ls1 compressor just fine. I couldn't get them to work with stock exhaust manifolds though because they are so bulky. I ended up going Ls1 lines and adapting Lt1 ends by making my own crimps.