I know this is an old post but checking up to how this turned out for 77 cruiser 77.
I have a 77 and totally regret wasting money on it. Could have bought a new 70 series double cab 4.2 i6 or 4.5 v8 for what I pUT into it. Anyways, I have had to resort to importing an ozzie aluminium rad from pwr. It is designed with larger internal tubes (about twice oem width from 14 to 28mm) and finally solved my overheating. Keep in mind my ambient temps are 40 to 50 degree celcius and highway speeds beyond 100 kmh is unattainable with the a/c on. Usually just 85 would be max on a hot day. She would just start to overheat and push 105 degrees then 110 and I half to slow even more. I have changed everything from rad hoses, thermostats, injector Pump rebuilds, fan clutch and fluid, 2 core oem rad then 3 core then 4 core, top mount intercooler etc you get the picture. Just happy to have cruiser running properly and cooling in this hellish heat
I have a 77 and totally regret wasting money on it. Could have bought a new 70 series double cab 4.2 i6 or 4.5 v8 for what I pUT into it. Anyways, I have had to resort to importing an ozzie aluminium rad from pwr. It is designed with larger internal tubes (about twice oem width from 14 to 28mm) and finally solved my overheating. Keep in mind my ambient temps are 40 to 50 degree celcius and highway speeds beyond 100 kmh is unattainable with the a/c on. Usually just 85 would be max on a hot day. She would just start to overheat and push 105 degrees then 110 and I half to slow even more. I have changed everything from rad hoses, thermostats, injector Pump rebuilds, fan clutch and fluid, 2 core oem rad then 3 core then 4 core, top mount intercooler etc you get the picture. Just happy to have cruiser running properly and cooling in this hellish heat