Hi Dave, while this section is about Radiators and yours is a '58 .
OldTruckWelder asked about rad. fitment in his '57 .
So If you don't mind I'm going to address this and what I saw and what I'm going to use in my '57 GMC .
I am using the 55-7 Chevy core support and a Camero rad and electric fan like the ones pictured below .
Now back to you Dave
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Glen & Jane's Rides
‘57 GMC NAPCO Long Bed V8 4 speed Bought 2008
7 other cars & trucks , 5 trailers
'56 Chevy Long Bed I6, 4 speed Bought 1990 Sold 8.22.2020
’56 GMC Suburban Pickup V8, 4 speed Hydramatic Bought 1996 Sold 10.11.2020
My Other Tinkerings
http://67-72chevytrucks.com/vboard/s...75#post8967275