NV WTB: Correct 72 4x4 350 Exhaust Manifolds - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Luis_gz06 · 08-19-2012, 01:14 PM

Looking for a set of correct exhaust manifolds for a 72 350 4x4 in good condition. The ones that I have, im not sure if they are correct. There straight down. The numbers are 3832465 RH46 and the other one is 3747038X RH25. Thanks!

msgross · 08-19-2012, 02:21 PM

The correct one's should dump straight down... I'm pretty sure that all 4x4's do, just like the corvette one's.

You could get vette ramhorns... some are even 2.5" openings.

Luis_gz06 · 08-19-2012, 09:02 PM

Mine are straight down. Thought that the numbers would matter. So as long as it's straight down, it's ok to use them? Thanks!

**LUCKTRUCK** · 08-19-2012, 10:59 PM

LH and RH would be the same since they are straight dump.

My GM book shows the below number for 72 350 4WD:

#336711, LH or RH non-smog (no air tube ports)
#3932461, LH or RH with smog (threaded holes for air tubes)

msgross · 08-20-2012, 10:34 AM

only differences are the smog inlets (with or without) and the alternator mount on the drivers side (2 or 3 different types I think). 2" diameter but some corvette models had 2.5"...

But yes, 4WD all had straight down ramhorns...

**Cash3481** · 08-20-2012, 01:54 PM

If you didnt see this already!
http://67-72chevytrucks.com/vboard/s...=1#post5548714

Just helping.

Mike

Luis_gz06 · 08-20-2012, 07:48 PM

Here's the ones that were on my Blazer. Should this be ok still to use?

msgross · 08-20-2012, 07:54 PM

perfect as long as you don't need the alternator mount on the drivers side... If you have a mount that does to your cylinder head then you are good...

Luis_gz06 · 08-21-2012, 07:51 AM

I don't need the alt mount. It is mounted on the cylinder head. Thanks all for your help. So I guess I don't need them afterall. But I do need the heat riser valve for sure. Anyone got one? Thanks!

msgross · 08-21-2012, 09:37 AM

I was thinking about leaving that off of mine, seems like it really restricts the exhaust...

**Ridgeback** · 08-21-2012, 10:35 AM

I have several NOS heat risers. If you are interested post your email and I will send some pictures.

Luis_gz06 · 08-21-2012, 08:31 PM

Pm sent to Ridgeback. msgross, thanks for the advice.

msgross · 08-22-2012, 09:59 AM

no prob...

**Ridgeback** · 08-22-2012, 08:39 PM

Luis_gz06

Price is $50 shipping included

Luis_gz06 · 08-26-2012, 03:42 PM

Quote:

Originally Posted by Ridgeback

Luis_gz06

Price is $50 shipping included

Interested! Can you send pics to: Luis_gz06@yahoo.com

**Ridgeback** · 08-27-2012, 09:55 AM

Luis_gz06

I will dig one out this afternoon and get you some pictures.

**Ridgeback** · 08-28-2012, 01:06 AM

Luis_gz06

Sent you an email with the pics.

Luis_gz06 · 08-28-2012, 06:37 PM

Quote:

Originally Posted by Ridgeback

Luis_gz06

Sent you an email with the pics.

Got the pics, thanks! Are you firm on the price?

**Ridgeback** · 08-29-2012, 01:02 PM

Luis_gz06

Sent you another email.

Luis_gz06 · 08-30-2012, 10:57 PM

Email returned!

**rockc** · 08-31-2012, 03:41 AM

'RIDGEbACK Icould use a couple heat riseres if you still have some available.
rockenc@vistabeam.com, Thanks Rock Dfd

**Ridgeback** · 08-31-2012, 02:19 PM

rockc:

I will dig them out and send you some pics this evening or tomorrow. Thanks.

08-19-2012, 01:14 PM	#1
Luis_gz06 Senior Member Join Date: Feb 2006 Location: Las Vegas Posts: 1,378	WTB: Correct 72 4x4 350 Exhaust Manifolds Looking for a set of correct exhaust manifolds for a 72 350 4x4 in good condition. The ones that I have, im not sure if they are correct. There straight down. The numbers are 3832465 RH46 and the other one is 3747038X RH25. Thanks! __________________ 1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD)

08-19-2012, 02:21 PM	#2
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds The correct one's should dump straight down... I'm pretty sure that all 4x4's do, just like the corvette one's. You could get vette ramhorns... some are even 2.5" openings. __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

08-19-2012, 10:59 PM	#4
LUCKTRUCK Senior Member Join Date: May 2007 Location: new jersey Posts: 606	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds LH and RH would be the same since they are straight dump. My GM book shows the below number for 72 350 4WD: #336711, LH or RH non-smog (no air tube ports) #3932461, LH or RH with smog (threaded holes for air tubes) __________________ LUCKTRUCK Last edited by LUCKTRUCK; 08-19-2012 at 11:01 PM. Reason: added comment

08-20-2012, 10:34 AM	#5
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds only differences are the smog inlets (with or without) and the alternator mount on the drivers side (2 or 3 different types I think). 2" diameter but some corvette models had 2.5"... But yes, 4WD all had straight down ramhorns... __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

08-20-2012, 01:54 PM	#6
Cash3481 Loves all GMC trucks Join Date: Jul 2010 Location: Columbia Mo Posts: 4,435	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds If you didnt see this already! http://67-72chevytrucks.com/vboard/s...=1#post5548714 Just helping. Mike

08-19-2012, 09:02 PM	#3
Luis_gz06 Senior Member Join Date: Feb 2006 Location: Las Vegas Posts: 1,378	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds Mine are straight down. Thought that the numbers would matter. So as long as it's straight down, it's ok to use them? Thanks! __________________ 1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD)

08-20-2012, 07:48 PM	#7
Luis_gz06 Senior Member Join Date: Feb 2006 Location: Las Vegas Posts: 1,378	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds Here's the ones that were on my Blazer. Should this be ok still to use? Attached Images __________________ 1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD)

08-20-2012, 07:54 PM	#8
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds perfect as long as you don't need the alternator mount on the drivers side... If you have a mount that does to your cylinder head then you are good... __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

08-21-2012, 07:51 AM	#9
Luis_gz06 Senior Member Join Date: Feb 2006 Location: Las Vegas Posts: 1,378	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds I don't need the alt mount. It is mounted on the cylinder head. Thanks all for your help. So I guess I don't need them afterall. But I do need the heat riser valve for sure. Anyone got one? Thanks! __________________ 1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD)

08-21-2012, 09:37 AM	#10
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds I was thinking about leaving that off of mine, seems like it really restricts the exhaust... __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

08-21-2012, 10:35 AM	#11
Ridgeback Senior Member Join Date: Mar 2003 Location: Virginia Posts: 809	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds I have several NOS heat risers. If you are interested post your email and I will send some pictures.

08-21-2012, 08:31 PM	#12
Luis_gz06 Senior Member Join Date: Feb 2006 Location: Las Vegas Posts: 1,378	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds Pm sent to Ridgeback. msgross, thanks for the advice. __________________ 1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD)

08-22-2012, 09:59 AM	#13
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds no prob... __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

08-22-2012, 08:39 PM	#14
Ridgeback Senior Member Join Date: Mar 2003 Location: Virginia Posts: 809	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds Luis_gz06 Price is $50 shipping included

08-27-2012, 09:55 AM	#16
Ridgeback Senior Member Join Date: Mar 2003 Location: Virginia Posts: 809	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds Luis_gz06 I will dig one out this afternoon and get you some pictures.



Register or Log In To remove these advertisements.

08-28-2012, 01:06 AM	#17
Ridgeback Senior Member Join Date: Mar 2003 Location: Virginia Posts: 809	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds Luis_gz06 Sent you an email with the pics.

08-29-2012, 01:02 PM	#19
Ridgeback Senior Member Join Date: Mar 2003 Location: Virginia Posts: 809	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds Luis_gz06 Sent you another email.

08-30-2012, 10:57 PM	#20
Luis_gz06 Senior Member Join Date: Feb 2006 Location: Las Vegas Posts: 1,378	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds Email returned! __________________ 1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD)

08-31-2012, 03:41 AM	#21
rockc Registered User Join Date: Jul 2007 Location: SE WY Posts: 639	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds 'RIDGEbACK Icould use a couple heat riseres if you still have some available. rockenc@vistabeam.com, Thanks Rock Dfd __________________ 72 chevy 3/4 ton 4X4

08-31-2012, 02:19 PM	#22
Ridgeback Senior Member Join Date: Mar 2003 Location: Virginia Posts: 809	Re: WTB: Correct 72 4x4 350 Exhaust Manifolds rockc: I will dig them out and send you some pics this evening or tomorrow. Thanks.

Register or Log In To remove these advertisements.