What brand heater core did you buy?
 

What brand heater core did you guys buy? i know theres Delphi, Spectra, and AC Delco so far. which brand is better? or which did you put in your truck? did any fit in easier than the other brand? thanks

I bought mine from Napa. fit really easy with no leaks

https://blazerforum.com/forum/album.php?albumid=957

how were the fins? were any of them bent alittle from people touching them a lot? also what was the part number on the box? thanks

Was just getting ready to ask this same question. So far I've found from a post that you should stay away from R&S Strauss house brand core.

Not for sure what year of truck you have but over at Rock Auto:
2000 Blazer:
DELPHI Part # HC0336 $43.99
SPECTRA PREMIUM Part # 93014 $65.79
ACDELCO Part # 1560087 $86.79