Dorman rams horns manifolds - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**MikeB** · 09-09-2009, 10:00 PM

It's been a while since I posted here, but wanted to share this with you guys:

Dorman makes a set of rams horns manifolds that angle rearward as used on small blocks in 67-72 trucks. They are P/Ns 674-201 and 674-199. The average price on the Internet is roughly $105-$115 (left side costs more than right side).

I just found a set at Amazon.com for $81 and $87 with FREE shipping! Just FYI, it always pays to search Amazon.com. A few years a go I found an Equus timing light that cost $170 at Summit Racing for around $110 + free shipping at Amazon.

unclewatts · 09-09-2009, 11:04 PM

Summit was never known to be a bargain basement kinda outfit.

*highperf4x4* · 09-09-2009, 11:20 PM

Quote:

Originally Posted by unclewatts

Summit was never known to be a bargain basement kinda outfit.

However, they will match prices on new parts from competitors. They knocked off almsot 100.00 on my cooper cobras to match the price of some off the wall website from California. Just call them up when you find a better price.

**leddzepp** · 09-09-2009, 11:52 PM

Summit sells quality name brand parts hidden in plain white boxes

Tx Firefighter · 09-10-2009, 06:37 AM

If you're going to go to the expense of ordering nice new Dorman manifolds, I will go ahead and point out that Dorman carries the Corvette ram horn manifolds too. That gets you a nice 2.5 inch manifold instead.

mbgmike · 09-10-2009, 07:22 AM

We sell all Dorman Products

chevy_mike · 09-10-2009, 11:15 AM

Quote:

Originally Posted by Tx Firefighter

If you're going to go to the expense of ordering nice new Dorman manifolds, I will go ahead and point out that Dorman carries the Corvette ram horn manifolds too. That gets you a nice 2.5 inch manifold instead.

I found a site that has these for $67.86. Great price.

http://www.performanceexhaustplus.co...5/674-503.html

http://www.performanceexhaustplus.co...6/674-504.html

Now the real question, since these dump straight down, will they clear the crossmember???

**MikeB** · 09-10-2009, 05:52 PM

Quote:

Originally Posted by Tx Firefighter

If you're going to go to the expense of ordering nice new Dorman manifolds, I will go ahead and point out that Dorman carries the Corvette ram horn manifolds too. That gets you a nice 2.5 inch manifold instead.

Yes, but have you tried to install a set in a truck with engine in the forward mounting position? They will probably dump straight down into the cross member.

By the way, Dorman now makes a 2.5" version with NO generator mounting boss, but it's $100+.

chevy_mike · 09-14-2009, 11:32 AM

Bump back to see if anyone has an answer.

Can you use the Corvette ram horns in the forward V8 mounting position?

**Boog** · 09-14-2009, 12:34 PM

I think some have used them but it makes for a really tight turn to keep the exhaust pipe from dragging the ground is what I remember them saying.

mclairmo · 09-14-2009, 01:32 PM

Quote:

Originally Posted by MikeB

Yes, but have you tried to install a set in a truck with engine in the forward mounting position? They will probably dump straight down into the cross member.

By the way, Dorman now makes a 2.5" version with NO generator mounting boss, but it's $100+.

What's the part no. of the 2.5 inch with no generator bosses? I really want that set up. I'm lifting my truck, so, as long as there will be no interference with the crossmember I am not worried about the head pipes hanging down really low.

BCOWANWHEELS · 09-14-2009, 05:55 PM

All the 2.5,s have gen bosses

**lks dcvn** · 09-18-2009, 06:36 PM

I used the 2.5 Dorman manifolds on my Dad's 2wd truck...

I did have to get a Skip White High Torque Mini-Starter though to clear the exhaust on the way down from the manifolds...

Here are some pix:

**lks dcvn** · 09-18-2009, 06:38 PM

few more...

The truck that I did the motor/trans swap from had the engine in this position already so the driveshaft came over with the swap...

mclairmo · 09-18-2009, 07:20 PM

Nice pics, really shows how well these manifolds fit. How do they perform?

*highperf4x4* · 09-18-2009, 11:06 PM

Quote:

Originally Posted by lks dcvn

I used the 2.5 Dorman manifolds on my Dad's 2wd truck...

I did have to get a Skip White High Torque Mini-Starter though to clear the exhaust on the way down from the manifolds...

Here are some pix:

I can see the abendix on that starter............ where is yo dust shield??

ajcan · 10-12-2009, 09:29 PM

I've been searching trying to find the answer.
This thread seems to be the newest on this subject so I will ask here.
Does anyone know where/how much/part number for the 2.5 Ram's horns that angle back for our trucks?
Do they even exist?
Thanks for any help.

AJ

chevy_mike · 10-12-2009, 11:36 PM

I don't think 2.5" angled ram horn manifold exist. I think only the Corvettes got 2.5" and they are down dump.

ajcan · 10-13-2009, 04:04 PM

Thanks Mike

The more I searched yesterday the more I thought I made it up in my little brain.
I kept seeing the 2.5 for straight down but not angled.
Thanks again.

AJ

09-09-2009, 10:00 PM	#1
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,544	Dorman rams horns manifolds It's been a while since I posted here, but wanted to share this with you guys: Dorman makes a set of rams horns manifolds that angle rearward as used on small blocks in 67-72 trucks. They are P/Ns 674-201 and 674-199. The average price on the Internet is roughly $105-$115 (left side costs more than right side). I just found a set at Amazon.com for $81 and $87 with FREE shipping! Just FYI, it always pays to search Amazon.com. A few years a go I found an Equus timing light that cost $170 at Summit Racing for around $110 + free shipping at Amazon. __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

09-09-2009, 11:04 PM	#2
unclewatts 70 Chevrolet=Obsession Join Date: Jun 2009 Location: nice ca Posts: 1,067	Re: Dorman rams horns manifolds Summit was never known to be a bargain basement kinda outfit. __________________ I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner)

09-09-2009, 11:52 PM	#4
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 20,009	Re: Dorman rams horns manifolds Summit sells quality name brand parts hidden in plain white boxes __________________ 1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul

09-10-2009, 06:37 AM	#5
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Dorman rams horns manifolds If you're going to go to the expense of ordering nice new Dorman manifolds, I will go ahead and point out that Dorman carries the Corvette ram horn manifolds too. That gets you a nice 2.5 inch manifold instead. __________________ I'm on the Instagram- @Gearhead_Kevin

09-10-2009, 07:22 AM	#6
mbgmike Registered User Join Date: Aug 2005 Location: Pasadena,Tx /Pto Pta DR Posts: 5,415	Re: Dorman rams horns manifolds We sell all Dorman Products Attached Images Last edited by mbgmike; 09-10-2009 at 06:53 PM.

09-14-2009, 11:32 AM	#9
chevy_mike Never Ending Projects Join Date: Jul 2006 Location: San Diego, CA Posts: 3,836	Re: Dorman rams horns manifolds Bump back to see if anyone has an answer. Can you use the Corvette ram horns in the forward V8 mounting position? __________________ . 1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often...

09-14-2009, 12:34 PM	#10
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,366	Re: Dorman rams horns manifolds I think some have used them but it makes for a really tight turn to keep the exhaust pipe from dragging the ground is what I remember them saying. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

09-14-2009, 05:55 PM	#12
BCOWANWHEELS Registered User Join Date: Nov 2006 Location: KINGSPORT,TN. Posts: 3,035	Re: Dorman rams horns manifolds All the 2.5,s have gen bosses __________________ I BELIEVE IN JOHN 3:16

09-18-2009, 06:36 PM	#13
lks dcvn Registered User Join Date: Jan 2007 Location: Columbus, Ohio Posts: 4,342	Re: Dorman rams horns manifolds I used the 2.5 Dorman manifolds on my Dad's 2wd truck... I did have to get a Skip White High Torque Mini-Starter though to clear the exhaust on the way down from the manifolds... Here are some pix: Attached Images

09-18-2009, 06:38 PM	#14
lks dcvn Registered User Join Date: Jan 2007 Location: Columbus, Ohio Posts: 4,342	Re: Dorman rams horns manifolds few more... The truck that I did the motor/trans swap from had the engine in this position already so the driveshaft came over with the swap... Attached Images

09-18-2009, 07:20 PM	#15
mclairmo Registered User Join Date: Jan 2006 Location: Take Off Posts: 1,908	Re: Dorman rams horns manifolds Nice pics, really shows how well these manifolds fit. How do they perform?

10-12-2009, 09:29 PM	#17
ajcan Registered User Join Date: Mar 2009 Location: Covington Georgia Posts: 87	Re: Dorman rams horns manifolds I've been searching trying to find the answer. This thread seems to be the newest on this subject so I will ask here. Does anyone know where/how much/part number for the 2.5 Ram's horns that angle back for our trucks? Do they even exist? Thanks for any help. AJ

10-12-2009, 11:36 PM	#18
chevy_mike Never Ending Projects Join Date: Jul 2006 Location: San Diego, CA Posts: 3,836	Re: Dorman rams horns manifolds I don't think 2.5" angled ram horn manifold exist. I think only the Corvettes got 2.5" and they are down dump. __________________ . 1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often...

10-13-2009, 04:04 PM	#19
ajcan Registered User Join Date: Mar 2009 Location: Covington Georgia Posts: 87	Re: Dorman rams horns manifolds Thanks Mike The more I searched yesterday the more I thought I made it up in my little brain. I kept seeing the 2.5 for straight down but not angled. Thanks again. AJ



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