copper heater core

[Kain]

I HAD ANOTHER HEATER CORE POP!!!! DARN SPECTUR CORES are aluminum. summit started making brass/copper cores. i got one friday and installed it this morning. i wish i would have taken some pics.
but i got a little exided and threw it in.

the link below


http://www.summitracing.com/parts/SUM-382177

 

[dyeager535]

Wow, that stinks. Are they splitting where the tanks are attached to the core, or just random spots like the AL is too thin?

 

[Kain]

where the tanks attach

 

[CK10]

What pressure are you running on the rad cap? I popped a couple with one year with a rad cap that was holding too much pressure. Now I pressure test them in the parts store before I leave, LOTS of variance on them from the factory. I find that in my climate 12psi is plenty to keep my truck happy, the "bad" cap was a 14psi that tested at 22lbs and popped my heater core

 

[Kain]

16 lb