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  1. cosgig

    Copper vs. Aluminum

    We always do that! They’re startin’ not to believe us! :)
  2. cosgig

    Fan dimensions

    Yep, it should work just fine
  3. cosgig

    Fan dimensions

    Any number of blades will work. I’ve put 7 blade fans in place of 4 blade fans with no problem.
  4. cosgig

    Fan dimensions

    Yep, that was the stock size.
  5. cosgig

    Fan dimensions

    Most Mopar fans are 18” in diameter, except the early A bodies, which use a 17” fan
  6. cosgig

    Coolant flow

    Can I come over and play cars with you, please?
  7. cosgig

    Coolant flow

    All this talk about thermostats has brought a question to my mind…. In the 6pak tuning guide they state that in order to get the exact correct tuning on your setup, certain items and parameters MUST be met. One item they state that must be in place is the 195 thermostat, which came stock on...
  8. cosgig

    Cooling issue on highway

    and I would guess that’s what the OP’s problem is. At freeway speeds, the airflow is not the problem, it should be getting plenty of air. I would suspect that he doesn’t have a radiator or hood seal, or the lower cowl seal in place, letting air pass by the radiator opening. He also needs a...
  9. cosgig

    Whose running a clutch fan

    I run a 6 blade 17” fan with a clutch in my stock metal fan shroud on my original 22” radiator. I had a couple of the 6 blade 17” fans, so I milled the center out to accept the clutch and assembled a couple for some friends that liked my setup!
  10. cosgig

    Clutch fan vs derale single 2400cfm fan

    Since nobody mentioned it here, I guess I will. Do you have the radiator support to hood seal in place, and the lower radiator support to splash pan seal? With a mechanical clutch fan and factory shroud, you are trying to create a vacuum where the fan pulls air through the radiator, and the area...
  11. cosgig

    water pump and pulley selection

    Of course, very little has been said here about air flow, which is the biggest part of the equation. If you’re not drawing enough air through the radiator, it doesn’t matter how fast or slow the water is flowing through. Maximizing your air flow is the biggest key to running at temp. The hood to...
  12. cosgig

    Original Radiators

    for the last 40 years, and up u til about 6 months ago, every car enthusiast in my area all had their radiators redone by Larry Lake, who was around 80 when he retired. He would still be doing them if he hadn’t gotten an offer on his property that he couldn’t refuse. He did my radiator about a...
  13. cosgig

    Original Radiators

    I had the original 956 radiator recored for my Roadrunner, and run the stock shroud and 195 thermostat. No problems whatsoever.
  14. cosgig

    Original Radiators

    Did you have factory shrouds on them and the factory suggested thermostat in the cars that crept up?
  15. cosgig

    Radiator in 63 Dart GT

    An original fan from a 63-66 would be 17” in diameter.
  16. cosgig

    Stock 64-66 V8 fan question

    thats because I suck and let my gold membership expire. I’ll pm you my texting number.
  17. cosgig

    Stock 64-66 V8 fan question

    I have that exact setup on my car. A couple things.... 1) the fan must remain your original fan, they are only 17”, the 67 and newer ones are 18” and some larger, and will not fit the metal shroud. 2) some 6 and 7 blade early A body fans have a hole in the center big enough to pass the stem of...
  18. cosgig

    64-66 abody radiator brackets for shroud

    Here’s a few pics of the 63/64 slant radiator with the corresponding shroud. I sold this about a month ago.
  19. cosgig

    Heater box j hook?

    Put the bottom bolt in but leave it very loose, out the box up with the door open and reach inside and hook the top, then tighten the bolt.
  20. cosgig

    Early A Cooling Fan Size

    I run the 17” fan with a clutch because I have the shroud!
  21. cosgig

    Early A Cooling Fan Size

    Yes, the fan is 17”. If you are not running the original 2 piece metal shroud, you can run an 18” fan.
  22. cosgig

    273 Radiator for 340?

    Wow, that's really expensive! The guy I use has been doing radiators for about 60 years, and he is in the $300 range all day long! Yes, it's driven by the price of the core, and I'll bet those custom cores can be really expensive! Never had the need for that much cooling myself, so I stick to...
  23. cosgig

    heater box identification help

    They did change the assembly in 68, and even the slider and switch assembly is different!! I'm parting out a couple of 67 Cudas if you find you need anything!!
  24. cosgig

    heater box identification help

    The "702" is the correct 1967 heater box!
  25. cosgig

    Clutch fan question

    Here is my fan and clutch! The fan is an original 17" fan correct for early A body cars with the 2 piece shroud! I don't know where I got the clutch, but I did not buy it straight out of a store!! What I can do is mock up another correct fan, and I have another clutch around here, and make sure...
  26. cosgig

    Clutch fan question

    I will picture my setup later with the original metal 2 piece shroud, 7 blade 17" fan, and the clutch mechanism I used!! I have a few extra 17" 6 and 7 blade fans for early A cars if you need one!!
  27. cosgig

    spectra premium heater core issue ? / anyone recommend a good heater core ?

    It appears that were all getting along!!!!
  28. cosgig

    spectra premium heater core issue ? / anyone recommend a good heater core ?

    There's a company down Texas way called Airtech or something of that nature, that builds and sells heater cores!! If I can find the catalog, I'll post up some info here!!
  29. cosgig

    Heater/Defroster Cable Clips...

    Make sure you also use the hole and put a screw in it to clamp down on the cable a little more!!
  30. cosgig

    Radiators: Is 22" enough for 400 HP?

    So, since nobody asked, I will!! What is the core support made for??? If it's only a 22" opening, a 26" radiator will do no good unless you cut your radiator support to allow the entire radiator to have air flow! Unless it's a car you don't mind cutting, you can and will find a 22" radiator that...
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