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I'm running two similar rigs. Both run hot. My YJ is AMC 401My TJ is Chevy 350. The reduced size of the grill dictates the size of the available radiator. Since the radiator is significantly smaller than the original application (full size truck), you must compensate for the smaller radiator by pulling an abundance of air. I've built massive shroud to force ALL available air to flow thru the radiator. I've gone to the largest available fan to force ALL available air thru the shroud. I even had the lower radiator hose location moved wider on the radiator so that I could run a bigger fan. I've gone to a pusher electric fan in front and a mechanical puller fan behind the radiator. I even louvered the hood of the YJ as the AMC ran hotter than the Chev At this time I don't run hot at all in the Chev, and rarely in the AMC. But it's only in hot weather and on long hauls
I'm running two similar rigs. Both run hot.
My YJ is AMC 401
My TJ is Chevy 350.
The reduced size of the grill dictates the size of the available radiator. Since the radiator is significantly smaller than the original application (full size truck), you must compensate for the smaller radiator by pulling an abundance of air. I've built massive shroud to force ALL available air to flow thru the radiator. I've gone to the largest available fan to force ALL available air thru the shroud. I even had the lower radiator hose location moved wider on the radiator so that I could run a bigger fan.
I've gone to a pusher electric fan in front and a mechanical puller fan behind the radiator. I even louvered the hood of the YJ as the AMC ran hotter than the Chev
At this time I don't run hot at all in the Chev, and rarely in the AMC. But it's only in hot weather and on long hauls
