Cool.

Use a 66 chevelle one.  Readily avail from the parts stores

That is wierd.  I have a bunch of chevelles and a bunch of beaumonts.  Heat boxes and cores are exactly the same.

The only difference i have found is that a US built 64 has a shorter core than all the canadian 64 ones.

Also, the fulsize belairs and impalas in 63 and 64 use the same cores too.

I bought a new core for my 67 a few years back (asked for a chevelle one).  Fit perfect.

Just wondering? if it was a hose connection would you not see it leaking  in the engine area where the hoses go through the firewall?  Or would you still have to take the cover off onthe inside of the car to see? If anyone has done this job , I would really like some step by step advice as to how to do it ,as I am not really mechanically savy. Thanks for any help  that may be available.                      Ted

My 66 Beaumont had a heater core that was NOT the same as Chevelle.  I had a radiator shop make one using the old one as a template.

I cost a bit more but fit correct.

Scottw wrote:

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My 66 Beaumont had a heater core that was NOT the same as Chevelle.  I had a radiator shop make one using the old one as a template.

I cost a bit more but fit correct.

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I see you're new here Scott. Welcome here.

I think we'd like to see more of your car!

 

Does anyone have the dimensions of the heater core for a 66 Beaumont?
The 66 Chevelle one I can buy is:
9.5" x 6-3/8" x 2.5"
5/8 inlet
3/4 outlet
$63.

I haven't pulled the one out of my car yet so I cannot compare.

After re-reading thus old post, I'm going to double check those hose connections before I start tearing things apart.

Thanks
Wes

Thanks Carl - that's interesting!

There are a couple old threads describing new heater cores that don't fit - likely the US Chevelle vs Canadian Chevelle & Beaumont. Maybe we need more heat?

After checking my hoses, if I have to pull the core, I guess I'll either get it repaired/re-cored or take it in and see if we can find one that'll fit.

Unless someone has an old one on the shelf they could measure up?

After further research and striping of cars since this thread started

Looks like all canadian chevelles and beaumont from 64-66 use the larger core.

the 1967s all use  the smaller core,  must have been a cost saving thing starting in 67.   You will need to match the box and core for a proper fit,  but you can easily swap from the larger to the smaller or viseversa, on all years.

The following is a post by 66Beau that was in another thread. ________________________________________________________________________________________________________________________________________________________________________________________ My heater core started leaking awhile ago and I by-passed it. Finally got around to pulling it apart. I pulled the inner fender out and got lucky. The only bolt that gave me problem was one of the front ones where the nut is spot welded to the top of the inner fender (under the battery). I will be able to spot weld it back on prior to re-assembly. Pulling the inner fender was a lot easier than I expected and gives lots of room to access the heater box. I think I'll do some cleaning while it's apart.

The core is 10-15/16" long x 6-3/8" wide x 2-1/2" thick. Overall length with the cans on the ends (including the inlet/outlets) is 12-1/4". See attached sketch.

I called Lordco and they have a replacement one (P/N 94531) in stock ($66.04 + tax). BUT it is 9-1/2" long x 6-3/8" wide x 2-1/2" thick.

I asked to check on the one r66SD recommended (P/N 94533) and it is 10-3/4 inches x 6-3/8" wide x 2-1/2" thick - very close to the stock dimensions. The downside: they want $171 + tax for it... That's a long way from the $76.65 r66SD paid. The price increased by 231% in 4 years.

So I'm wondering, for $110, how exactly did people make the shorter one fit? If it ends up being a solid fit, I think I'll go with the cheaper one. I am certain I can put the extra $110 to good use. And considering how much the car gets driven in cold weather (zero) I think I could live with the smaller core, as long as I can get it to fit snug and not rattle or wear.

I haven't looked into re-coring the old one. I'm guessing re-coring will be more expensive than the $66, and I'd be worried about cracks around the inlet & outlet.

Let me know if anyone wants photos of how everything fits together. I will snap a few pix and upload them, but if someone wants a photo of something specific I can make sure to include the get the right angle.

So - short story: If you used the shorter core, how did you seal around the end, and have you had any problems?





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Thanks Carl (X2).

I just ordered one from Summit. It's the correct dimensions and I got the core, a seal kit and a new blower motor (while I've got everything apart). With shipping, exchange, taxes & duty it should all come to about $30 more than just the heater core from Lordco...

Indian - I don't think there is a radiator shop in town - closest one is about 60 miles away.

I'll still post pictures after I get the new core.

pontiax wrote:

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I went thru the same problem with my full size. I think that Canadian cars may have gotten the larger cores from the a/c equipped cars. Better heat for the prairie provinces ?

Spectra premium 94539 made in Mexico from brass/copper not aluminium.

Fits Chevelle Skylark Impala GM A and B bodies.

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 x2

A non-AC '64 Impala one ordered through NAPA was smaller than my stock non-AC '64 Parsienne one. I returned it, and found the proper sized Spectra one.

EDIT

For the archive - the heater core shown below DOES NOT fit.  In addition to L x W x T and the size of the inlet & outlet, it appears you also need to have the inlet & outlet in the correct location.  In the photo below, you may notice (I didn't) that the inlet & outlet are shifted to the right compared to the original.  I could enlarge the holes in the firewall, but prefer not.

________ORIGINAL POST___________

I received my parts today.
Here is the new heater core on the left (Summit number: PLI-399043, made by Vista Pro Ready Aire in Mexico) and the original heater core on the right:

The new core is the same width (actually, a tiny bit wider at 6.5 inches whereas the original is 6.375").  They are both 2.5 inches thick.

The old core is just under 11 inches long (measuring just the core, not including the tanks).  The new one is 10.5 inches long.  

The replacement core listed on most websites and at Summit is 2.5 inches thick x 6.375 inches wide, but only 9.5 inches long.  The 10.5 inch one is much closer to the original.

Note:  It appears that I might have got the last one of these heater cores from Summit.  It's now listed as unavailable.

It appears that the one I got is from a Cadillac - see here:

http://www.autopartswarehouse.com/sku/Cadillac/Fleetwood/ProRad/Heater_Core/1970/Base/8_Cyl_7-dot-7L/APDI9010328.html 

 

One notable difference:  The inlet/outlet seem to be reversed.  Does anyone know why I can't connect the hoses upside down?  The description indicates that the inlet is 5/8" and outlet is 3/4" for both cores - their just located the wrong way around...

Probably better to have the outlet on the top, but does it matter?  Does anyone know if the heater core is installed upside down in the Caddy's? (meaning the hoses would come out from behind the right front tire instead of from behind the engine...).

 

As a bonus, I decided to replace the blower motor too while I had it all apart.  Ordered one from Summit while I was ordering. Here's a picture:

The part number is FSS-35587 in case anyone is looking to get one.  Notice the 'bonus'?  

Made in Canada!

 

I'll post some pictures of how the heater core fits in the housing later.

Wes

-- Edited by 66 Beau on Wednesday 18th of February 2015 07:51:58 PM

-- Edited by 66 Beau on Monday 23rd of February 2015 12:26:38 PM