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02-21-2021, 10:32 PM | #1 |
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Converting 2WD Heat Stove to 4WD
Just what the world needs now...another heat stove thread. Not even my first . But I've thought for a while you could make a 4WD heat stove from a 2WD one, so tonight I put it to the test.
I had three examples in the old basement, none of which were particularly outstanding by themselves...two were pretty crummy. One was a 2WD with the rearward down pipe bend. The other was was a 4WD. The third is I believe a 4WD example, but without the aft cutout. All are non-A.I.R. versions. Neither of the two 4WD heat stoves ended at the same spot. I have often wondered if they only stamped 2WD stoves and then just cut them. I have seen 4WD versions that were cut with an upper and lower "tail", or just an upper "tail" as pictured here. Though I can't be sure than mine hasn't just broken. I assume this cutout is clearance for a 4WD dipstick. There are two half circles on the inner aspect that I used as a reference. Two pics show this point compared between the 2WD version and one of the 4WD versions. Here are some additional links for the curious...even one to a reproduction heat stove for 76-80 Corvettes which is similar and probably workable for us: https://67-72chevytrucks.com/vboard/...d.php?t=786952 http://67-72chevytrucks.com/vboard/s...d.php?t=115144 https://www.southerncarparts.com/c3-...gaAr5uEALw_wcB
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." Last edited by IronCanine; 02-21-2021 at 10:49 PM. |
02-21-2021, 10:35 PM | #2 |
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Re: Converting 2WD Heat Stove to 4WD
Here are a few more pics of the "cut" level on the two 4WD versions. The level varied a bit side to side on the rusty one, and the other while pretty level was cut much shorter.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
02-21-2021, 10:41 PM | #3 |
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Re: Converting 2WD Heat Stove to 4WD
The process was pretty simple. I just had to work out the dings in the 2WD version and then cut the length to fit. And finally a little massaging of the bottom edge for shape.
I think it's a nice option since these things are so hard to come by...and there are quite a few more 2WD examples out there. I will probably cut the back out as well, but since once it's cut it's gone, I thought I'd wait to pull the trigger on that. I might learn something in the meantime that changes my mind. ;p
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." Last edited by IronCanine; 02-21-2021 at 10:50 PM. |
02-21-2021, 10:46 PM | #4 |
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Re: Converting 2WD Heat Stove to 4WD
Brilliant. What tool did you use to make the cut?
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland |
02-21-2021, 10:47 PM | #5 |
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Re: Converting 2WD Heat Stove to 4WD
Finally...these were likely black from the factory. I didn't know that six years ago when I did the Blazer. In hindsight, I still think the silver looks better though. Below is the 80 mile 70 C10 that you've all seen. And it's still the best reference I know of for factory finish on this part.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
02-21-2021, 10:48 PM | #6 |
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Re: Converting 2WD Heat Stove to 4WD
Tin snips worked great. Then I dressed it a bit with an angle grinder.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
02-21-2021, 10:54 PM | #7 |
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Re: Converting 2WD Heat Stove to 4WD
Good info. I was wondering today if I was going to go back and paint mine black.
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03-15-2021, 09:07 PM | #8 |
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Re: Converting 2WD Heat Stove to 4WD
Just in case what your Monday night was missing was a couple of posts on a 4x4 heat stove. Picked this up at a swap meet a week or so ago from Woody (SouthernParts). Couldn't resist it as a reference piece. The back is in decent shape and even though it has the open end, it isn't missing any metal.
Note the finish on the backing plate. It's bare, save for some exhaust soot and dirt. Of course the paint could have come off cleanly from the heat but there is no trace and the metal is very clean. It's a finish like that that led me to ceramic coat one of these silver previously.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
03-15-2021, 09:09 PM | #9 |
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Re: Converting 2WD Heat Stove to 4WD
K20rookie has a build thread with a very complete and original Fremont K20 that was built just a few thousand units before mine. His heat stove has an open end and so I'm going to probably cut this one to match. Here are the measurements transferred from the open example.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
03-15-2021, 09:29 PM | #10 |
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Re: Converting 2WD Heat Stove to 4WD
Here’s a 4wd example, as found.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland |
03-15-2021, 09:39 PM | #11 |
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Re: Converting 2WD Heat Stove to 4WD
Thanks for posting Pete. Back looks pretty clean on that one too. Nice to get an A.I.R. example as well. I'd like to convince myself that some of those came out of the factory raw. Esthetically, I just like the look better.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
03-15-2021, 09:54 PM | #12 |
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Re: Converting 2WD Heat Stove to 4WD
Fun thread. Just a thought - it seems like more stoves have accommodations for the AIR injection tubes than there are AIR 4wds. Is it possible that some non-AIR K- truck V8s received stoves with holes for the tubes? I’ll dig to see if I can find any part numbers.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland |
03-15-2021, 11:08 PM | #13 |
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Re: Converting 2WD Heat Stove to 4WD
What about the Vettes? I've wondered if all the center dump heat stoves floating around were off 4x4s to begin with. Looks like the inlet is different on the 350 corvettes...but very similar. Nonetheless, it makes sense to me that some trucks without A.I.R. left the factory with heat stove that had holes.
Thought I'd search out some NOS examples from GM cars of the era to check finishes. Wouldn't you know it I got both. First is a Camaro, second is a C3 vette and the last one (dressed in black) is a Chevelle/El Camino big block (68-72) which is currently on eBay for $3500.00
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
03-16-2021, 10:24 AM | #14 |
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Re: Converting 2WD Heat Stove to 4WD
I worked in a chevy dealership in 1972 and don't remember seeing any paint on the shields in the trucks. Then I went to work in a GM parts warehouse and most of the metal parts were painted with bonderite to prevent them from rusting. GM replacement parts do not come from the factory where they assemble the vehicles, they come straight from the venders. The factory orders are always filled before the parts warehouse orders. That is why there is sometimes such a long wait for current model replacement parts.
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03-16-2021, 11:22 AM | #15 | |
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Re: Converting 2WD Heat Stove to 4WD
Quote:
Thanks BigBird05. Finishes on a part like this are difficult...since they almost immediately rust and there don't seem to be any period color pics of new engine bays. The aforementioned 80-mile C10 is the best I have so far...and it just "looks" painted in the pic. I appreciate you taking time to share. Hopefully others will chime in.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
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03-16-2021, 04:35 PM | #16 |
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Re: Converting 2WD Heat Stove to 4WD
This is the heat shield on my 56,000 mile 1972 C10. The silver finish on the back pieces is what caused me to finish the shields in silver for the last 35 years.
The front piece on this one appears to have been painted or unfinished, but the rear is silver, maybe galvanized, as evidenced in th second shot.
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03-16-2021, 05:38 PM | #17 |
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Re: Converting 2WD Heat Stove to 4WD
Makes sense to me Larry. Thanks for posting.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
03-16-2021, 07:18 PM | #18 |
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Re: Converting 2WD Heat Stove to 4WD
The one owner, 60,000 orig mile 1972 K20 I restored had air injection holes in the exhaust tin even though the truck never had, or was it required to have an air pump.
Here's a couple pics. I'm sure you'll notice it has an incorrect exhaust manifold on it in these pics. When I bought the truck the drivers side manifold was cracked, so I swapped it out for one I had laying around the garage. I just remembered that after I had the exhaust tin blasted at the time of restoration, the inner tin portion (the piece between the manifold and head that the outer tin fastens to) appeared to be plated. It came back from blast with a silver, cad plating look to it. Almost looked like aluminum, or galvanized. I tried to find a pic of it with no luck. Last edited by 72Cheyenne454; 03-16-2021 at 08:53 PM. |
03-16-2021, 07:25 PM | #19 | |
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Re: Converting 2WD Heat Stove to 4WD
Quote:
...btw, the site is on fire. Feel like I've learned a lot this week.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
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03-16-2021, 08:55 PM | #20 |
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Re: Converting 2WD Heat Stove to 4WD
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03-16-2021, 09:29 PM | #21 |
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Re: Converting 2WD Heat Stove to 4WD
In my opinion, the inside was plated either cad or galvanized. and the outside painted. This thread has changed my opinion of many years
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03-22-2021, 10:08 PM | #22 |
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Re: Converting 2WD Heat Stove to 4WD
This thread was in no way crying out for closure. But I had five minutes on Sunday and knocked out the cuts along with most of the old ceramic coating. Main reason I cut up this 2WD version was I knew it'd be unlikely that I'd ever find a 4WD version as clean.
...and I guess the final finish is probably still TBD. For now it goes back on the shelf.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
03-29-2021, 09:22 PM | #23 |
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Re: Converting 2WD Heat Stove to 4WD
Larry...likely more credence to your theory about to painted outer and unpainted inner. Here's a pretty honest 75K mile 70 CST. Note the clear difference on those two pieces.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
04-05-2021, 08:41 PM | #24 |
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Re: Converting 2WD Heat Stove to 4WD
I posted this pic in the valve cover decal thread too. It's from a 1970 mailer that member Chevyland shared. Obviously it's in a media piece, so always taken with a grain of salt...but it's a pic of a '70 400 that seems pretty honest/faithful on other component finishes...and wouldn't you know it...the heat stove is black.
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
05-24-2021, 10:40 PM | #25 |
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Re: Converting 2WD Heat Stove to 4WD
Here's an NOS version on eBay now (thanks for the heads up Pete). It's listed as a 69 70 version for SBC center dump exhaust. Obviously a passenger side application for cars. But it's clearly painted black. https://www.ebay.com/itm/373541083055
In my obituary perhaps it will say, "His contribution was stickers and heat stoves."
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1970 K20 Z62 https://67-72chevytrucks.com/vboard/...56#post9334756 1970 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=645076 1969 K10 SWB CST http://67-72chevytrucks.com/vboard/s...52#post8520352 1971 K20 Z84 https://67-72chevytrucks.com/vboard/...90#post9047290 1946 B.F. Avery Model A Tractor http://67-72chevytrucks.com/vboard/s...55#post8292555 "Sometimes I wonder if zander208 was even real..." |
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