School me on diff ram horn styles.. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

oldblue1968chevy · 05-03-2011, 11:07 PM

Was at the junkyard awhile back, saw a c 40 + with the hood raised, I poked around in in didnt see anything worth grabbing..

Anyway, it had Ram horns that pointed STRAIGHT down at the ground? The ones on my truck go back and down.

Whats the diff? Is there a 'ram horn' thats better than another? Ive read somewere that the vette horns flow better than truck ram horns or something?..

I know the 73+ ? Ones are fugly, those are some ugly exhaust manifolds..

**too much stuff** · 05-03-2011, 11:40 PM

Generally the 4x4 trucks had the straight down dump and the 2wd had the angled back. The vettes were also straight dump but were 2.5" outlet and the trucks were 2".
They are actually a good flowing manifold.

MARKDTN · 05-04-2011, 07:39 AM

Quote:

Originally Posted by too much stuff

Generally the 4x4 trucks had the straight down dump and the 2wd had the angled back. The vettes were also straight dump but were 2.5" outlet and the trucks were 2".
They are actually a good flowing manifold.

Just a little clarification. The 2.5" outlet Ram Horns were last used in '64 in Corvettes. Never in the C3 (68-82 Corvettes). People do swap them in, but GM never put them there.

cdowns · 05-04-2011, 12:07 PM

all cast iron manifolds are not rams horns

ChevLoRay · 05-04-2011, 12:14 PM

Here's an OEM type exhaust manifold. I also have 3 sets of rams' horn manifolds, but none of them are the 300HP/327 type that was also used on the 350HP/327 and I think on the 300HP/350's.

Truck manifold (driver's side) below:

Lee H · 05-04-2011, 03:38 PM

Quote:

Originally Posted by MARKDTN

Just a little clarification. The 2.5" outlet Ram Horns were last used in '64 in Corvettes. Never in the C3 (68-82 Corvettes). People do swap them in, but GM never put them there.

Almost, corvettes used 2.5 inch rams horns on SHP (special high perfromance) engines. For 63, 64, and 65 on all 300 HP manual and above. All base engines and up to 300 HP auto and 66 and later used 2 inch.
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50bomb · 05-04-2011, 03:44 PM

Also to add. If you have your engine mounts on the 67-72 if not older up on the front holes towards radiator you might want to have those pictured above for clearance so it wont touch the crossmemeber? Cause Mine are mounted up front and I have the Ram horn manifolds straight down and I don't see it having eoungh room there. Maybe it don't matter but just saying..any thoughts or ideas on that?

*stich626* · 05-04-2011, 07:50 PM

sandersons are 2.5"

05-03-2011, 11:07 PM	#1
oldblue1968chevy Grandpa in the rustmobile... Join Date: Nov 2008 Location: Spokane WA/Viola TN Posts: 11,422	School me on diff ram horn styles.. Was at the junkyard awhile back, saw a c 40 + with the hood raised, I poked around in in didnt see anything worth grabbing.. Anyway, it had Ram horns that pointed STRAIGHT down at the ground? The ones on my truck go back and down. Whats the diff? Is there a 'ram horn' thats better than another? Ive read somewere that the vette horns flow better than truck ram horns or something?.. I know the 73+ ? Ones are fugly, those are some ugly exhaust manifolds.. __________________ John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4

05-03-2011, 11:40 PM	#2
too much stuff Roadtrip! Join Date: Feb 2003 Location: Grand Rapids MN Posts: 13,717	Re: School me on diff ram horn styles.. Generally the 4x4 trucks had the straight down dump and the 2wd had the angled back. The vettes were also straight dump but were 2.5" outlet and the trucks were 2". They are actually a good flowing manifold. __________________ 67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto

05-04-2011, 12:07 PM	#4
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: School me on diff ram horn styles.. all cast iron manifolds are not rams horns __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

05-04-2011, 12:14 PM	#5
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Re: School me on diff ram horn styles.. Here's an OEM type exhaust manifold. I also have 3 sets of rams' horn manifolds, but none of them are the 300HP/327 type that was also used on the 350HP/327 and I think on the 300HP/350's. Truck manifold (driver's side) below: Attached Images __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

05-04-2011, 03:44 PM	#7
50bomb Registered User Join Date: Jul 2010 Location: Hemet,Ca Posts: 1,502	Re: School me on diff ram horn styles.. Also to add. If you have your engine mounts on the 67-72 if not older up on the front holes towards radiator you might want to have those pictured above for clearance so it wont touch the crossmemeber? Cause Mine are mounted up front and I have the Ram horn manifolds straight down and I don't see it having eoungh room there. Maybe it don't matter but just saying..any thoughts or ideas on that? Last edited by 50bomb; 05-04-2011 at 03:46 PM.

05-04-2011, 07:50 PM	#8
stich626 Account Suspended Join Date: Sep 2010 Location: hingham ma Posts: 1,721	Re: School me on diff ram horn styles.. sandersons are 2.5"



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