L31MaxExpress
I'm Awesome
Finally one last improvement I made during maintaining the van. When my stock radiator cracked and started leaking, I flushed the system, swapped the stock thermostat for a 180°F and swapped the stock radiator for a 1-ton 454 or 8.1 core. The fan shroud did not quite cover the wider 34" radiator but it still cooled much better than the tiny, thin OEM core that is 31.5" wide. While I had it apart I robbed a van of the brackets and adapter for the engine oil cooler. The engine oil cooler lines and quick disconnects were replaced with GM AC Delco and plumbed into the 454 radiator. The oil pressure stabilized out and had nearly 10 psi more at hot idle. The load on these vans overheats the oil and cooks it.
I used a 34x19 radiator with a 2-5/16" core on my 383 but the 34x17 is a better fit with the factory fan shroud. I had previously upgraded the trans cooler as well to help keep it cool.
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I used a 34x19 radiator with a 2-5/16" core on my 383 but the 34x17 is a better fit with the factory fan shroud. I had previously upgraded the trans cooler as well to help keep it cool.
You must be registered for see images attach