Heater Assembly Question!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*jojotonka* · 03-12-2007, 08:51 PM

Does anyone know if I can put a 67-69 heater assembly on a 72??

I started my rat rod engine swap this weekend. I gutted all my a/c components to clean up engine bay and make more room for the 454. Now I need a heater core without a/c and the different inner air box. I know that 67-69 had a metal box and 70 -72 had plastic, but are the firewalls the same?
Any suggestions would be great!!
Thanks
Joe

rigon4 · 03-12-2007, 09:33 PM

I think the fire walls are the same

*jojotonka* · 03-12-2007, 09:41 PM

Well, maybe I should ask this too. Is the firewall diff. on a blazer with a/c versus the firewall without a/c?

pound41 · 03-12-2007, 09:46 PM

Yes an AC firewall is different, heater core holes and box are off. If you search some AC threads someone posted a pic of one and took a red marker and drew in the others. to show what over laps and what doesn't

herb101 · 03-12-2007, 09:47 PM

Any plans for the pulled out AC parts?

Herb

BUDDY · 03-16-2007, 11:41 AM

I say smooth the firewall & do this. I know this is on a later model truck, & he's doing a whole other project on his truck, but I'm referring to using the heatercraft style heater box. Look for my name a few posts later for my experience with it in my TJ. It works great!

Few other links.

heatercraft

jeepforum - look for my name "buddy" here for my initial post about this

jcwhitney

westmarine

core

Where I got the idea

Just a thought,
Buddy

Chevyman63 · 03-17-2007, 10:34 PM

How goes the engine swap? Let me know if you need any help.

*jojotonka* · 03-18-2007, 09:20 AM

Well, I've been at a stand still for a week. I had to go to St. Louis for work. Gotta chase the dollar bill when ya can.

I like the looks of that heater box BUDDY, I'll definately keep that in mind. I haven't decided if I'm going to fab up the original to down size it or go your route. I'm headed out to the garage now to take some pics for Herb.

03-12-2007, 08:51 PM	#1
jojotonka Account Suspended Join Date: Jan 2007 Location: lennon, michigan Posts: 162	Heater Assembly Question!! Does anyone know if I can put a 67-69 heater assembly on a 72?? I started my rat rod engine swap this weekend. I gutted all my a/c components to clean up engine bay and make more room for the 454. Now I need a heater core without a/c and the different inner air box. I know that 67-69 had a metal box and 70 -72 had plastic, but are the firewalls the same? Any suggestions would be great!! Thanks Joe

03-12-2007, 09:33 PM	#2
rigon4 Registered User Join Date: Mar 2006 Location: east syracuse ny Posts: 371	Re: Heater Assembly Question!! I think the fire walls are the same __________________ 1981 K-5 Blazer 2wd 1985 C-10 Short step 1988 C-10 Suburban

03-12-2007, 09:41 PM	#3
jojotonka Account Suspended Join Date: Jan 2007 Location: lennon, michigan Posts: 162	Re: Heater Assembly Question!! Well, maybe I should ask this too. Is the firewall diff. on a blazer with a/c versus the firewall without a/c?

03-12-2007, 09:46 PM	#4
pound41 Registered User Join Date: Dec 2002 Location: Northern Virginia Posts: 1,268	Re: Heater Assembly Question!! Yes an AC firewall is different, heater core holes and box are off. If you search some AC threads someone posted a pic of one and took a red marker and drew in the others. to show what over laps and what doesn't

03-12-2007, 09:47 PM	#5
herb101 Used Register Join Date: May 2005 Location: Live Oak, TX Posts: 379	Re: Heater Assembly Question!! Any plans for the pulled out AC parts? Herb

03-16-2007, 11:41 AM	#6
BUDDY Global warming is a myth Join Date: Apr 2003 Location: Henderson, NV Posts: 208	Re: Heater Assembly Question!! I say smooth the firewall & do this. I know this is on a later model truck, & he's doing a whole other project on his truck, but I'm referring to using the heatercraft style heater box. Look for my name a few posts later for my experience with it in my TJ. It works great! Few other links. heatercraft jeepforum - look for my name "buddy" here for my initial post about this jcwhitney westmarine core Where I got the idea Just a thought, Buddy __________________ Henderson, NV 1972 K5 - Lifelong project - Needs Time, Place, Help & Parts!! 1990 K5 with 37's 2003 Discovery SE7 - Wife's

03-17-2007, 10:34 PM	#7
Chevyman63 Can't wait to retire!! Join Date: Feb 2003 Location: Corunna, MI Posts: 1,575	Re: Heater Assembly Question!! How goes the engine swap? Let me know if you need any help. __________________ 2009 4x4 Chevy Crew Cab 6.0 1989 4x4 Siverado (270,000 miles) 1972 4x4 Blazer 2007 Chevy Cutaway 1 ton 1970 Corvette (sons project) RIP - CLR 10/11/09

03-18-2007, 09:20 AM	#8
jojotonka Account Suspended Join Date: Jan 2007 Location: lennon, michigan Posts: 162	Re: Heater Assembly Question!! Well, I've been at a stand still for a week. I had to go to St. Louis for work. Gotta chase the dollar bill when ya can. I like the looks of that heater box BUDDY, I'll definately keep that in mind. I haven't decided if I'm going to fab up the original to down size it or go your route. I'm headed out to the garage now to take some pics for Herb.

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