soloz2

Hey, I was out and about today (I drive for my school and I had to bring a prospective student to the airport) and I was driving past an Autozone so I figured I'd stop and take a look at a 77 bonneville heater core. I've been thinking about getting one (haven't decided if I'll buy pre-modded or do it myself) so I went in and asked to see one. they only had the w/ AC version and the ends went out and then were bent at an angle. I've never seen one like this, so... when getting a bonneville heater core do you want one that is made for a car with or w/o AC? Also, when I looked on Autozone's website they were $18. and in the store they were $22.

what gives?

If I do decide to do it myself what adaptors would I need to get it to a 1/2" barb? I do have a soder iron so that isn't an issue.

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Renegade5399

W/OUT AC is the best to use. As far as the fittings sizes, I am not sure. fstfrddy is quite familiar with this and I think there may be a FAQ for it too.

soloz2

ok, I haven't seen a faq about the 77 bonneville heater core. If I decide to do it myself maybe I'll make one.

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atomicfission92

I know everyone is modding their heater cores, But I didn't I made the 1/2" id. tubing fit over both ends the 1/2" side and 3/4" side with no problem at all. You have to work it on a little bit but it works. Also with the 3/4" side I stuck the end of the tubing in boiling water for about 5 minutes so it was really pliable and then pushed it on the end of the 3/4" outlet. I don't know if anyone else has done this but it worked for me. And it also saved me time and money.

Heres a pic of what mine looks like:

Chopes

yup there is already an faq i used for the heatercore modding where you have to cut it down and all that, i just boiled some water and pushes it way down, works just as well.

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soloz2

hey, I found this FAQ about the 77 bonneville heater cores. it's a good one check it out
http://www.ocforums.com/showthread.php?t=304440

(I know it's not on our forum, which is a shame cause I think we have one of the (if not the) best forums on overclocking!)

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fstfrddy

You can use any heatercore, the only difference in the A/C one is it is a bit bigger and the tube configuration is different but heatercores are all the same basically. You are going to see the cheaper cores disappear as these are remanufactured cores and they are no longer doing them for the 77 Bonny. Soon you will have to use the A/C cores or buy the brand new ones which run $40 t0 $50. For some reason all of the 77 Bonneville cores are being bought.
Also you cannot sweat on the proper fittings with a soldering iron, you need at least a propane torch, I use a mapp torch.