[Mr70]

That's also the same hose the 1969 Chevelle L-34's,L-35's AND 1970 Chevelle L-34's,LS-3's & LS-5's all used when equipped w/AC or a Heavy Duty optional radiator-(V0-1),because it had to curve around the compressor.
1971-72 Big Block Chevelles used it also as their std.hose too.
When an LS-6 was equipped w/a HD 4 core radiator,(same as AC),it automatically defaulted/received this hose too,as oppossed to the straight #7227 KY hose.