No reason that the 4.9L can't be connected to the Fiero A/C system. You will just need a new hose. All the A/C compressor hose connectors are available online to mate the compressor to the manifold on the firewall. On the firewall side you just use the old Fiero connector with new O rings. My setup will use the Cadillac A/C compressor but as such a high pressure switch must be added on the high side line. Without the switch the system can build excessive pressures as in the Fiero Factory install, many of which failed.
------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
