Ram horn manifolds - The 1947 - Present Chevrolet & GMC Truck Message Board Network

krue · 06-06-2003, 05:33 PM

What are ram horn manifolds? What are the advantages of them over stock manifolds? What are the advantages over headers?

I appreciate all the knowledge you guys are going to impart!

Class of 69 · 06-06-2003, 05:58 PM

Ram Horn is just a name given to stock manifolds that curl up between the cylinders, rather than running straight across. The advantage over headers, is they last 30 years instead of 4. There have been some very good pics of ram horns on here lately. Did you do a search for them? You may well have them on your truck.

**JIMs70GMC** · 06-06-2003, 08:02 PM

Have some pics in the link in my signature.

Longhorn Man · 06-06-2003, 11:36 PM

Here are ram horn manifolds. These came stock on all small block 67 - 72 GM pick ups 10 - 30 series.

They are the best flowing shape manifold, only being outflowed by the corvette ones and that is only a size deal. (the vette ones are also ram horns) These fit our chassis way better than the 'log' style manifolds too.
They are better than headers becouse they retain more noise, they don't leak nearly as easily, and the earlier ones have better munting provisions than any adapter you can get on headers.
However, if your headers are only lasting 4 years...even in the rust belt...then something is seriously wrong.

Roberty · 06-06-2003, 11:42 PM

Did the Vette looking Ram Horns ever come on a 66 and earlier V8 Chevy truck? I bought 65 and 71 Chevy trucks from a guy a couple of years back. The 65 had a set of ram horns that look just like the early 'Vette rams horns. I took them off before selling the truck and still have them. Anybody know if GM put the same looking exhaust manifold on the 65 as the 'Vette? I can't post a picture of them for obvious reasons(no attachments at this time).
Robert

jimfulco · 06-07-2003, 04:16 AM

The Vette ones had a 2-1/2" outlet. They may still be available from GM.

**JIMs70GMC** · 06-07-2003, 05:02 AM

They still make the vette ones. Mine were cast in 2000 and 2001. Have pics in link in my sig for the "center dumps". Both the stock ones and vette ones.

Number98 · 06-07-2003, 09:16 AM

So the vette ones have larger inlets than the standard ram horns? Will the vette ones fit our trucks as well and clear everything nice? If so and they are available form GM then does anybody have part numbers?

Jason

**JIMs70GMC** · 06-07-2003, 04:59 PM

The pics in my sig should have had p/n as the file name. They fit 4x4s as for 2wd, I believe there is some interference issues with either one motor mount or the frame not sure which. This is for the center dumps straight down.

jimfulco · 06-08-2003, 02:52 AM

http://www.paceparts.com/subcatmfgpr...3&1=276&2=1084

dinnut · 06-08-2003, 03:35 AM

do they flow as good as headers?

Roberty · 06-08-2003, 10:14 AM

Quote:

Originally posted by dinnut
do they flow as good as headers?

I doubt that they frow quite as good. Close maybe - and you wouldn't have the headers other problems such as noise and keeping tightened, etc...
Robert

Longhorn Man · 06-08-2003, 11:56 AM

Ram horns actualy flow better than some of the cheap headers. I think it was Hot Rod that did a flow comparison 6 or so years ago.

06-06-2003, 05:33 PM	#1
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Ram horn manifolds What are ram horn manifolds? What are the advantages of them over stock manifolds? What are the advantages over headers? I appreciate all the knowledge you guys are going to impart! __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

06-06-2003, 05:58 PM	#2
Class of 69 Registered User Join Date: Mar 2003 Location: Stillwater MN Posts: 1,166	Ram Horn is just a name given to stock manifolds that curl up between the cylinders, rather than running straight across. The advantage over headers, is they last 30 years instead of 4. There have been some very good pics of ram horns on here lately. Did you do a search for them? You may well have them on your truck. __________________ 69 GMC K10 ..some restoration required....still..

06-06-2003, 08:02 PM	#3
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Have some pics in the link in my signature. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

06-06-2003, 11:42 PM	#5
Roberty Hot Damn - Here I Am!! Join Date: Feb 2000 Location: Ringgold, Georgia Posts: 726	Did the Vette looking Ram Horns ever come on a 66 and earlier V8 Chevy truck? I bought 65 and 71 Chevy trucks from a guy a couple of years back. The 65 had a set of ram horns that look just like the early 'Vette rams horns. I took them off before selling the truck and still have them. Anybody know if GM put the same looking exhaust manifold on the 65 as the 'Vette? I can't post a picture of them for obvious reasons(no attachments at this time). Robert __________________ My vehicles: '90 Silverado Sport '71 Chevelle SS Convertible '70 C-10 - My Grandfather bought it new - original un-restored

06-07-2003, 05:02 AM	#7
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	They still make the vette ones. Mine were cast in 2000 and 2001. Have pics in link in my sig for the "center dumps". Both the stock ones and vette ones. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

06-06-2003, 11:36 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Here are ram horn manifolds. These came stock on all small block 67 - 72 GM pick ups 10 - 30 series. They are the best flowing shape manifold, only being outflowed by the corvette ones and that is only a size deal. (the vette ones are also ram horns) These fit our chassis way better than the 'log' style manifolds too. They are better than headers becouse they retain more noise, they don't leak nearly as easily, and the earlier ones have better munting provisions than any adapter you can get on headers. However, if your headers are only lasting 4 years...even in the rust belt...then something is seriously wrong.

06-07-2003, 04:16 AM	#6
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	The Vette ones had a 2-1/2" outlet. They may still be available from GM.

06-07-2003, 09:16 AM	#8
Number98 Prestige Worldwide Join Date: Feb 2001 Location: Worldwide Posts: 2,553	So the vette ones have larger inlets than the standard ram horns? Will the vette ones fit our trucks as well and clear everything nice? If so and they are available form GM then does anybody have part numbers? Jason

06-07-2003, 04:59 PM	#9
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	The pics in my sig should have had p/n as the file name. They fit 4x4s as for 2wd, I believe there is some interference issues with either one motor mount or the frame not sure which. This is for the center dumps straight down. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

06-08-2003, 02:52 AM	#10
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	http://www.paceparts.com/subcatmfgpr...3&1=276&2=1084

06-08-2003, 03:35 AM	#11
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	do they flow as good as headers? __________________ 70 longbed 496/th400/Ford 9"

06-08-2003, 11:56 AM	#13
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Ram horns actualy flow better than some of the cheap headers. I think it was Hot Rod that did a flow comparison 6 or so years ago.



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