Exhaust Manifold Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70LonghornCST · 04-19-2011, 11:37 PM

I bought this manifold on here about a year ago. I posted a want ad for a GM manifold. I never paid close attenton to the markings before today. Today I sandblasted the manifold. In doing so, I noticed that the 'M' is missing from the GM. It has the markings: 3832470 LH 22 G The part number might also be 3932470. I can't quite differentiate whether it has an 8 or a 9 in the part number.
Can anyone tell me anything about this manifold. Is it GM, and is it for a truck?
Thanks so much.
Richard

bruceman1968 · 04-20-2011, 12:35 AM

If that last number is a 3 instead of 0 then,
3932473
69-70 327, 350 & 400 LH Passenger 235, 250, 255, 265 & 300 HP 2.0" Outlet
I found that here. Click on Parts ID
http://www.chevymania.com/

70LonghornCST · 04-20-2011, 12:53 AM

You know, I think that might just be 3932473. So, that website indicates "passenger," and that means it won't work on a truck, correct?

bruceman1968 · 04-20-2011, 01:09 AM

Sorry Richard, I don't know if it will work or not.

70LonghornCST · 04-20-2011, 01:33 AM

Quote:

Originally Posted by bruceman1968

Sorry Richard, I don't know if it will work or not.

Bruce,
Thanks for chimming in and providing me with some info. Hopefully others can let me know if this will work on a truck, and what's up with there only being a G, instead of a GM embossed on the side.

Jessechop · 04-20-2011, 07:16 AM

On a 2wd it should work just fine, allthough I am pretty sure the trucks were 2 1/4" outlet

**jerry moss** · 04-20-2011, 10:16 AM

Richard,
it will work fine on your truck. they all are 2 inch outlets. the only larger openings are on the straight dump vette manifolds-they are 2 1/2 inch.

JORGIE95961 · 04-20-2011, 10:38 AM

thatll work fine bro

70LonghornCST · 04-20-2011, 05:40 PM

Thanks guys. I really appreciate the help. Thanks for the specifics, Jerry.

70LonghornCST · 04-20-2011, 05:48 PM

Oh, does anyone know why GM only embossed the letter G on this manifold?

04-19-2011, 11:37 PM	#1
70LonghornCST Moderator Join Date: Jun 2008 Location: Modesto, CA Posts: 5,775	Exhaust Manifold Question I bought this manifold on here about a year ago. I posted a want ad for a GM manifold. I never paid close attenton to the markings before today. Today I sandblasted the manifold. In doing so, I noticed that the 'M' is missing from the GM. It has the markings: 3832470 LH 22 G The part number might also be 3932470. I can't quite differentiate whether it has an 8 or a 9 in the part number. Can anyone tell me anything about this manifold. Is it GM, and is it for a truck? Thanks so much. Richard Attached Images __________________ 2018 Chevy Crew Cab 2006 Impala SS 1965 Plymouth Sport Fury 1970 Chevy Longhorn Bucket Seats Shoulder Belts Front Tow Hooks Factory Air Factory Speedwarning, Tach & Vaccum Factory Tilt CST Package AM/FM Radio Bumper Guards Richard 70 Longhorn CST Build Adding an AM/FM Decal Last edited by 70LonghornCST; 04-19-2011 at 11:39 PM.

04-20-2011, 12:35 AM	#2
bruceman1968 Registered User Join Date: Oct 2009 Location: Tampa Bay Posts: 1,549	Re: Exhaust Manifold Question If that last number is a 3 instead of 0 then, 3932473 69-70 327, 350 & 400 LH Passenger 235, 250, 255, 265 & 300 HP 2.0" Outlet I found that here. Click on Parts ID http://www.chevymania.com/ __________________ CHEVY/GMC VIN DECODERS

04-20-2011, 12:53 AM	#3
70LonghornCST Moderator Join Date: Jun 2008 Location: Modesto, CA Posts: 5,775	Re: Exhaust Manifold Question You know, I think that might just be 3932473. So, that website indicates "passenger," and that means it won't work on a truck, correct? __________________ 2018 Chevy Crew Cab 2006 Impala SS 1965 Plymouth Sport Fury 1970 Chevy Longhorn Bucket Seats Shoulder Belts Front Tow Hooks Factory Air Factory Speedwarning, Tach & Vaccum Factory Tilt CST Package AM/FM Radio Bumper Guards Richard 70 Longhorn CST Build Adding an AM/FM Decal Last edited by 70LonghornCST; 04-20-2011 at 12:53 AM.

04-20-2011, 01:09 AM	#4
bruceman1968 Registered User Join Date: Oct 2009 Location: Tampa Bay Posts: 1,549	Re: Exhaust Manifold Question Sorry Richard, I don't know if it will work or not. __________________ CHEVY/GMC VIN DECODERS

04-20-2011, 07:16 AM	#6
Jessechop Registered User Join Date: Sep 2003 Location: maine Posts: 191	Re: Exhaust Manifold Question On a 2wd it should work just fine, allthough I am pretty sure the trucks were 2 1/4" outlet

04-20-2011, 10:16 AM	#7
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,916	Re: Exhaust Manifold Question Richard, it will work fine on your truck. they all are 2 inch outlets. the only larger openings are on the straight dump vette manifolds-they are 2 1/2 inch. __________________ jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA

04-20-2011, 10:38 AM	#8
JORGIE95961 Registered User Join Date: Feb 2011 Location: OLIVEHURST CA Posts: 570	Re: Exhaust Manifold Question thatll work fine bro

04-20-2011, 05:40 PM	#9
70LonghornCST Moderator Join Date: Jun 2008 Location: Modesto, CA Posts: 5,775	Re: Exhaust Manifold Question Thanks guys. I really appreciate the help. Thanks for the specifics, Jerry. Last edited by 70LonghornCST; 04-20-2011 at 05:43 PM.

04-20-2011, 05:48 PM	#10
70LonghornCST Moderator Join Date: Jun 2008 Location: Modesto, CA Posts: 5,775	Re: Exhaust Manifold Question Oh, does anyone know why GM only embossed the letter G on this manifold? __________________ 2018 Chevy Crew Cab 2006 Impala SS 1965 Plymouth Sport Fury 1970 Chevy Longhorn Bucket Seats Shoulder Belts Front Tow Hooks Factory Air Factory Speedwarning, Tach & Vaccum Factory Tilt CST Package AM/FM Radio Bumper Guards Richard 70 Longhorn CST Build Adding an AM/FM Decal



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