Did 68s Have Stove Pipes???

[1968 baby blue C10]

Originally Posted by FirstOwner69

Understood. Not a problem with me!

So your truck blows the theory of only automatic chokes coming with the stove pipe. Hmmm... another options mystery on 67-72 trucks. Who would’ve thought?

[FirstOwner69]

Originally Posted by 1968 baby blue C10

So your truck blows the theory of only automatic chokes coming with the stove pipe. Hmmm... another options mystery on 67-72 trucks. Who would’ve thought?

I didn't see anyone imply that only automatic choke equipped trucks had stove pipes. It may have blown the theory that stove pipes were required for (or facilitated) automatic choke operation. That was the purpose of the heat riser valve.

Stove pipes routed preheated air to the carb, which facilitated a cleaner combustion process. They would also have helped prevent carburetor icing in cold climates.

[binford]

Bottom line, do what ever floats your boat.
I'm dumping that old school stuff for an LS motor. Twice the horse power same gas mileage.

If you need that heat shield I might have it.
But I pulled all that stuff like a year ago

[1968 baby blue C10]

Originally Posted by FirstOwner69

I didn't see anyone imply that only automatic choke equipped trucks had stove pipes. It may have blown the theory that stove pipes were required for (or facilitated) automatic choke operation. That was the purpose of the heat riser valve.

Stove pipes routed preheated air to the carb, which facilitated a cleaner combustion process. They would also have helped prevent carburetor icing in cold climates.

That’s what I was meaning to imply earlier when I mis-spoke and said electric choke, based on the automatic choke facilitation.

For anyone who does have them, is it mentioned on the SPID?

[FirstOwner69]

Originally Posted by binford

Bottom line, do what ever floats your boat.
I'm dumping that old school stuff for an LS motor. Twice the horse power same gas mileage.

If you need that heat shield I might have it.
But I pulled all that stuff like a year ago

But... what fun is it with all that modern trouble free stuff?

EDIT: This was meant as a serious comment. See post 34!!!

[FirstOwner69]

Originally Posted by 1968 baby blue C10

For anyone who does have them, is it mentioned on the SPID?

No.

[1968 baby blue C10]

Originally Posted by FirstOwner69

But... what fun is it with all that modern trouble free stuff?

“Trouble free” and “modern” in the same sentence. That’s funny
And I don’t think this discussion was started to make a decision it was just a discussion about what came with them and didn’t, so there’s really no bottom line until that’s settled.

[1968 baby blue C10]

Originally Posted by FirstOwner69

No.

So that would mean whatever ones came with it, it was factory standard wouldn’t it?

[FirstOwner69]

Originally Posted by 1968 baby blue C10

“Trouble free” and “modern” in the same sentence. That’s funny
And I don’t think this discussion was started to make a decision it was just a discussion about what came with them and didn’t, so there’s really no bottom line until that’s settled.

Actually, that comment was not meant to be sarcastic at all. I firmly believe, at least in my 55 years of car ownership, the new stuff is FAR more reliable than this old school stuff. My 69 truck has a much thicker folder of warranty and repair receipts than any of the 35 new/newer vehicles I've bought since. My 2015 Silverado Duramax with 35,000 plus miles has yet to be in for any repair. The 2006 Duramax which I sold with more miles than my 69 (123,000 vs. 119,000) was only in 3 or 4 times. The folder on the 69 is an inch thick.

[FirstOwner69]

Originally Posted by 1968 baby blue C10

So that would mean whatever ones came with it, it was factory standard wouldn’t it?

True of choke type and/or stove pipe if everything is original.

[1968 baby blue C10]

Originally Posted by FirstOwner69

Actually, that comment was not meant to be sarcastic at all. I firmly believe, at least in my 55 years of car ownership, the new stuff is FAR more reliable than this old school stuff. My 69 truck has a much thicker folder of warranty and repair receipts than any of the 35 new/newer vehicles I've bought since. My 2015 Silverado Duramax with 35,000 plus miles has yet to be in for any repair. The 2006 Duramax which I sold with more miles than my 69 (123,000 vs. 119,000) was only in 3 or 4 times. The folder on the 69 is an inch thick.

Wow seriously? You’ve been very lucky then. I’ve seen way more trouble from electronics and computers, and I haven’t even been driving for a very long time.
It’s always a sensor or something weird with a computer messing something else up. I remember my dad talking about a guy who had over a million miles on a square body without an engine rebuild, only basic maintenance. I won’t even drive anything past early 2000s because of all the overly computerized stuff.

[hewittca]

Originally Posted by Graham57a

Corey which plant did your truck come out of?

It was built in the Baltimore, MD plant.

[toms68cst]

That second engine picture posted in the original post is my truck. It's a 68 with a manual four speed. From what I've seen, automatic transmission trucks were more likely to have stove pipes and manuals were more likely to have smog pumps. I think 3/4 ton's and higher were exempt from more strict smog controls at the time.

Other rules would apply for other years and of course California rules of the time would apply too.

I see someone else has an orange alternator bracket on their '68. That's a whole other mystery for the '68's!

[toms68cst]

Looking again at the 68 picture with a heat riser, it looks like there is a dip-stick for the tranny. CORRECTION, its the throttle linkage. I can't tell if its an automatic or not.

[1968 baby blue C10]

Originally Posted by toms68cst

That second engine picture posted in the original post is my truck. It's a 68 with a manual four speed. From what I've seen, automatic transmission trucks were more likely to have stove pipes and manuals were more likely to have smog pumps. I think 3/4 ton's and higher were exempt from more strict smog controls at the time.

Other rules would apply for other years and of course California rules of the time would apply too.

I see someone else has an orange alternator bracket on their '68. That's a whole other mystery for the '68's!

That is really interesting. Mine is a factory 4 speed also. But mine had neither the stove pipe or the smog pump. Mine was an Arkansas truck though.
What’s the deal with the orange bracket?

[toms68cst]

Originally Posted by 1968 baby blue C10

That is really interesting. Mine is a factory 4 speed also. But mine had neither the stove pipe or the smog pump. Mine was an Arkansas truck though.
What’s the deal with the orange bracket?

99.99 percent of chevy small blocks have come with flat black alternator brackets over the years. I've seen a few '68 327s over the years here with orange brackets. Most Chevy experts see an orange alternator bracket and insist it's incorrect.

I am pretty sure mine was orange originally.

[1968 baby blue C10]

Originally Posted by toms68cst

99.99 percent of chevy small blocks have come with flat black alternator brackets over the years. I've seen a few '68 327s over the years here with orange brackets. Most Chevy experts see an orange alternator bracket and insist it's incorrect.

I am pretty sure mine was orange originally.

That’s pretty cool, must be super rare, I’ve never even heard about it till now. So is it supposedly only 327s that have it?

[Joesjunk]

My old '68 K/20 Panel truck, 307, original oil bath air cleaner, had orange alternator brackets, no stove pipe

[toms68cst]

Originally Posted by 1968 baby blue C10

That’s pretty cool, must be super rare, I’ve never even heard about it till now. So is it supposedly only 327s that have it?

I don't think orange alternator bracket is a 327 only thing. According to Joesjunk post, looks like 307's were affected too.

All the smog brackets on my 327 were orange. It's odd that the oil fillers are all black though in '68.