Big Block Radiators

[TS69GT500]

1969 GT500 driver, have original rad stored for safe keeping and currently running the Modine 379.
Since this Modine rad is NLA what does anyone have experience with the current crop of copper/brass radiators.
How is the quality of ACP radiators?
US Radiator seems like an excellent product (pricey) but I don't have any first hand knowledge.

Any and all comments/suggestions appreciated.
Thanks,
TonyS
 

[Special Ed]

Most big block and boss radiators out there are only 2'' cores with 3 rows of 1/2'' tubes BUT factory concours correct cores are wider 3 rows of 5/8'' tubes and i have to special order them made in detroit at at cost of over $1000.00 per core now as they doubled in last 6 years or so (like everything else). You need the wide core to help from overheating in big blocks. I have 2 old skool radiators guy in my area that i use and we take rads apart strip all metal and reasemble them according to date and trans and east or west modine and 67 side straps are different and 68s have 4 humps on side straps and 69 dont have the humps and 70s have the 2 raised ribs on top and bottom corners so u have to assemble them according to the car and when built. I have had to change or correct almost every car that comes thru our shop as original radiators are getting very hard to find and highly visable part up front where u see it. I got many new 2'' cores here i took out and will sell cheap if anybody wants them also make sure side strap with #s gets put back on the rh side of rad as i got 2 here that were assembled on the wrong lh side. U dont have to take the rad cap off to see if tubes are 1/2'' or 5/8'' just look at the 2 center cross rods as they should be tight against the core and if a 3/16'' gap on both sides of rods then its the smaller 2'' core also make sure u get the correct # of tube rows as i think its 43 or so not smaller tighter closer together type core tubes as they are wrong vendor and look noticibely different if u know what u are looking at.

[68blk500c]

Good info!!  Thanks Ed.