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  1. 68 HEMI GTS

    Cold Case vs. AutoCityClassic (the 'ebay' radiator) Compare-O

    Thanks, this is great info!! Going to need a radiator for the hemi dart. Weighing my options but the cold case was one I was looking at. I may have to look at the ACC, I’m going to be room limited anyway. That one should be around 800hp, I suspect it’s going to suck to cool.
  2. 68 HEMI GTS

    Which radiator would you buy ?

    drivers side will mount up pretty good, This one I had to drill holes (not sure that’s always the case). Passenger side will defiantly need drilled. Then you just have to add a spacer to the top. Pretty easy.
  3. 68 HEMI GTS

    Which radiator would you buy ?

    I’d slip a 26” in it. That’s what I run I my B body. I left the opening small but it still fits good.
  4. 68 HEMI GTS

    I need big block rad advice

    I’ve had 2 be-kools, neither worth a **** for cooling. Griffin, smith, wizard is where I would be looking
  5. 68 HEMI GTS

    What temp thermostat to use?

    Depends on the ability of the cooling system combined with the size and resenence time.
  6. 68 HEMI GTS

    What temp thermostat to use?

    Wrong! But hey, it's the internet :wtf:
  7. 68 HEMI GTS

    What temp thermostat to use?

    7 is colder than a 6. Ngk numbers are opposite of say a champion.
  8. 68 HEMI GTS

    What temp thermostat to use?

    Msd recommends a resister with their boxes. I run resistor plugs in the dart and rr. 511 uses a BKR6E. Readily avaliable at the auto parts store for around $20 a set. That's at 10.5. If your up over a 11 try the BKR7E
  9. 68 HEMI GTS

    What temp thermostat to use?

    Motor will stay cleaner with a 180. It may or may not et better with a 160. My hemi is about a 0.10 faster with a 160. Never bothered to try it on the roadrunner just because it's a street car 99% of the time.
  10. 68 HEMI GTS

    Over heat issue need help ! 69 Super bee 665 HP

    A big motor like that could really benefit from a 26" rad. I put one in my runner, although I didn't cut the opening (factory 22"). I did however have to drill a few holes, not really a big deal. I run a factory shroud with a big flex type fan. My 511 does real good. Radiator is a smith with 2...
  11. 68 HEMI GTS

    22" vs. 26"

    the one in the RR is out of a 77 powerwagon, i also have the truck water pump housing with a high volume milodon pump. use a factory clutch fan. that car will literately idle all day long in traffic on a hot day and never go over 185. actually did that last week at the hines drive cruise. the...
  12. 68 HEMI GTS

    22" vs. 26"

    i always go with the 26", they still hold more water and provide extra surface area even if you dont cut the opening bigger. rr is still the smaller opening. the dart i opened up.
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