1976 454 heat riser tube - The 1947 - Present Chevrolet & GMC Truck Message Board Network

nm78bronco · 01-25-2016, 02:12 PM

Hello all,

I have a 1976 GMC suburban with the 454 engine and need the factory heat riser tube (goes between the exhaust manifold stove to the snorkel of the air cleaner).

Does anyone know the GM delco part # or if it is made in the aftermarket?

Matt Man · 01-25-2016, 06:25 PM

This?

https://www.rockauto.com/catalog/raf...ktemplate=true

nm78bronco · 01-25-2016, 07:45 PM

Thanks a lot for your input.

The tube I need has the same function as what you mentioned, but is different.

The one I need is a rigid metal tube with a tab tack-welded to it. This tab has a hole that allows it to be attached to the cylinder head using a small bolt.

Zane M · 01-26-2016, 01:46 AM

I have never seen a factory replacement, or an aftermarket reproduction.
I had a 78 with a similar set up and had to go with the solution presented by Matt Man(although at the time I didn't have the world at my fingertips via the internet like we do now).

nm78bronco · 01-26-2016, 12:23 PM

Thanks for the info. I may have to see if I can find a good used one of if one off an El Camino (with a 454) would work.

mytime · 01-26-2016, 05:50 PM

Been looking for one as well,have noticed one at the elcamino store but not sure on the fit.

nm78bronco · 01-26-2016, 07:58 PM

I bought one of these tubes for a 1980's 454 truck but it did not fit.

01-25-2016, 02:12 PM	#1
nm78bronco Registered User Join Date: Apr 2011 Location: San Tan Valley, Arizona Posts: 30	1976 454 heat riser tube Hello all, I have a 1976 GMC suburban with the 454 engine and need the factory heat riser tube (goes between the exhaust manifold stove to the snorkel of the air cleaner). Does anyone know the GM delco part # or if it is made in the aftermarket?

01-25-2016, 06:25 PM	#2
Matt Man Registered User Join Date: Oct 2009 Location: Buhl, Idaho Posts: 1,438	Re: 1976 454 heat riser tube This? https://www.rockauto.com/catalog/raf...ktemplate=true __________________ 86 c30 crew cab dually 454/400 4/6 drop SOLD 1-8-11 1981 chevy K10 short Bed Scottsdale SOLD 10-26-2020 67 GMC Stepside Straight six/3 on the tree "The Peach" 2020 Silverado Double Cab LT Z71 5.3 8 speed Daily Driver K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934 The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903

01-25-2016, 07:45 PM	#3
nm78bronco Registered User Join Date: Apr 2011 Location: San Tan Valley, Arizona Posts: 30	Re: 1976 454 heat riser tube Thanks a lot for your input. The tube I need has the same function as what you mentioned, but is different. The one I need is a rigid metal tube with a tab tack-welded to it. This tab has a hole that allows it to be attached to the cylinder head using a small bolt.

01-26-2016, 01:46 AM	#4
Zane M Registered User Join Date: Dec 2006 Location: SLC, UT Posts: 706	Re: 1976 454 heat riser tube I have never seen a factory replacement, or an aftermarket reproduction. I had a 78 with a similar set up and had to go with the solution presented by Matt Man(although at the time I didn't have the world at my fingertips via the internet like we do now).

01-26-2016, 12:23 PM	#5
nm78bronco Registered User Join Date: Apr 2011 Location: San Tan Valley, Arizona Posts: 30	Re: 1976 454 heat riser tube Thanks for the info. I may have to see if I can find a good used one of if one off an El Camino (with a 454) would work.

01-26-2016, 05:50 PM	#6
mytime Registered User Join Date: Nov 2015 Location: Wetaskiwin Posts: 26	Re: 1976 454 heat riser tube Been looking for one as well,have noticed one at the elcamino store but not sure on the fit.

01-26-2016, 07:58 PM	#7
nm78bronco Registered User Join Date: Apr 2011 Location: San Tan Valley, Arizona Posts: 30	Re: 1976 454 heat riser tube I bought one of these tubes for a 1980's 454 truck but it did not fit.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.