Early 70 A/C Suction Line

[Jeffrey S.]

I need information on suction line configuration on a 02-02-70 build date; 350/300hp. I know there are two different style compressor, muffler and tube assemblies for the small block.

The first one is 3963760 (up to 05/18/70); the second one is 3992144.

Part #3963760 uses a separate line running from the compressor to the POA valve. Is the original configuration for this line rigid aluminum or rubber hose?

Any information would be greatly appreciated.

Thanks....Jeff

[Geoff C.]

AC lines

Completely rigid formed aluminum lines (without any rubber freon hose) did not appear until 74 on the condenser outlet line. That line was in 2 pieces to lead back to the VIR. All prior models use freon hose clamped or crimped to aluminum fittings for the various connections.