Vette 2-1/2" rams horn treatments - The 1947 - Present Chevrolet & GMC Truck Message Board Network

da-burb · 01-07-2004, 08:08 PM

I just got my pair of Corvette LH 2-1/2" rams horns from the FedEx truck. These have the alt bolt holes on the end. I plan to cut them off and shape them more like our std manifolds. I am also thinking of ceramic coating them. Has anybody smoothed out the natural cast finish before coating? or removed the part numbers or just smooth out the mold parting seam. Any pictures?

BLAZERMAN · 01-07-2004, 08:24 PM

Try nu2-72, I think he has done this with his rams horns.

dinnut · 01-07-2004, 08:29 PM

id like to know how to clean up ramhorns and headers and such and what to put on them... because sometimes the ugliest thing in your engine is the headers or ram horns because the finish is half gone...

**uncle** · 01-07-2004, 08:52 PM

If you're planning on running these on a truck with frame mounts in stock location I hope you have a good muffler shop. Even at that you might still have to change your starter. I used a later model Chevy truck starter. 88 up I think.

jjk3 · 01-07-2004, 09:22 PM

I've smoothed out the parting lines on my set of rams horns. I just used a Dremel Rotary Tool with (I think) the grinding roll. Then smoothed it out a little bit with some of the fine sandpaper rolls. It wasn't hard. I don't know about any of the other questions, though. Also, I don't have any pics since they're in GA right now. You might want to post a question to gearhead on the inliners board. Here is a link to an engine painting post over there, where he mentions grinding smooth his engine block to paint it. http://www.inliners.org./ubb/Forum1/HTML/001622.html

Hope this helps. John

nu2-72 · 01-07-2004, 11:16 PM

I have done my block and my manifolds. Bandsaw close, grind closer and then i hand filed to keep the shape blended. After that use a Dremel or Right angle die grinder with 3M pads.
There are some pics on my thread "Why would I want to Vortec"
I will link it.

nu2-72 · 01-07-2004, 11:19 PM

http://67-72chevytrucks.com/vboard/s...571#post666571
Sorry that is page two.

Here;

http://67-72chevytrucks.com/vboard/s...5&pagenumber=1

I have also been using "manifold dressing" from Mid Amarica Corvettes for years with great success.
When we can post pics again I will show you a set I did years ago.

**Bernie** · 01-08-2004, 12:58 AM

I bought a pair of these for a 4X4. I had them Hi Temp powder coated. It was cheaper than I thought it would be $100 for them and a load of brackets, valve covers, tow hooks towing hitch etc. I had to sandblast the stuff first.

skid · 01-08-2004, 01:39 AM

While you're at it, you should port match the port openings to a felpro 1404 (I think ) exhaust gasket, which is easily done with a die grinder and carbide bit. I spoke with Randy Brzyzinsky of Brzyzinsky racing and he mentioned that if that is done, there is no restriction on your exhaust port. There is no need to port the inside of the manifold, just the port openings according to him. They also sell a mandrel bent 2 into 1 exhaust system which makes much more HP than duals. I bought it but have not yet installed it.

www.castheads.com

01-07-2004, 08:08 PM	#1
da-burb "Ochre Ogre" Join Date: Apr 2000 Location: Springfield, MN Posts: 3,558	Vette 2-1/2" rams horn treatments I just got my pair of Corvette LH 2-1/2" rams horns from the FedEx truck. These have the alt bolt holes on the end. I plan to cut them off and shape them more like our std manifolds. I am also thinking of ceramic coating them. Has anybody smoothed out the natural cast finish before coating? or removed the part numbers or just smooth out the mold parting seam. Any pictures? __________________ Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087

01-07-2004, 08:24 PM	#2
BLAZERMAN Currently Blazerless Join Date: Apr 2000 Location: St. Joseph Mo. Posts: 4,827	Try nu2-72, I think he has done this with his rams horns. __________________ 1972 C/30 133" W.B. C&C 1970 GMC 3500 157" W.B. single wheel C&C

01-07-2004, 08:29 PM	#3
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	id like to know how to clean up ramhorns and headers and such and what to put on them... because sometimes the ugliest thing in your engine is the headers or ram horns because the finish is half gone... __________________ 70 longbed 496/th400/Ford 9"

01-07-2004, 08:52 PM	#4
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,288	RAMHORNS If you're planning on running these on a truck with frame mounts in stock location I hope you have a good muffler shop. Even at that you might still have to change your starter. I used a later model Chevy truck starter. 88 up I think.

01-07-2004, 09:22 PM	#5
jjk3 It's just a check engine lamp. Join Date: Apr 2001 Location: Melbourne, FL Posts: 311	I've smoothed out the parting lines on my set of rams horns. I just used a Dremel Rotary Tool with (I think) the grinding roll. Then smoothed it out a little bit with some of the fine sandpaper rolls. It wasn't hard. I don't know about any of the other questions, though. Also, I don't have any pics since they're in GA right now. You might want to post a question to gearhead on the inliners board. Here is a link to an engine painting post over there, where he mentions grinding smooth his engine block to paint it. http://www.inliners.org./ubb/Forum1/HTML/001622.html Hope this helps. John __________________ Active Inliner---bigchevy66 68 SWB Stepside 250 L6/3 on the floor/ Hedman headers, HEI, MSD 6A box, K&N filter, Offy intake and Edelbrock 600cfm 4 barrel Soon to have: WC T-5 five speed 66 SWB Stepside-undergoing restoration

01-07-2004, 11:16 PM	#6
nu2-72 Senior Member Join Date: Apr 2001 Location: Amazonia, Mo. USA Posts: 2,821	I have done my block and my manifolds. Bandsaw close, grind closer and then i hand filed to keep the shape blended. After that use a Dremel or Right angle die grinder with 3M pads. There are some pics on my thread "Why would I want to Vortec" I will link it. __________________ 72 3/4 4x4 350 4spd 72 3/4 4x4 350 auto 2004 Duramax Silverado 4x4 2006 Duramax Crew cab 4x4 2010 Harley Ultra Limited 2011 Harley Street Glide

01-07-2004, 11:19 PM	#7
nu2-72 Senior Member Join Date: Apr 2001 Location: Amazonia, Mo. USA Posts: 2,821	here http://67-72chevytrucks.com/vboard/s...571#post666571 Sorry that is page two. Here; http://67-72chevytrucks.com/vboard/s...5&pagenumber=1 I have also been using "manifold dressing" from Mid Amarica Corvettes for years with great success. When we can post pics again I will show you a set I did years ago. __________________ 72 3/4 4x4 350 4spd 72 3/4 4x4 350 auto 2004 Duramax Silverado 4x4 2006 Duramax Crew cab 4x4 2010 Harley Ultra Limited 2011 Harley Street Glide Last edited by nu2-72; 01-07-2004 at 11:25 PM.

01-08-2004, 12:58 AM	#8
Bernie Senior Member Join Date: Jan 2001 Location: Northern Illinois Posts: 516	I bought a pair of these for a 4X4. I had them Hi Temp powder coated. It was cheaper than I thought it would be $100 for them and a load of brackets, valve covers, tow hooks towing hitch etc. I had to sandblast the stuff first. __________________ Bernie

01-08-2004, 01:39 AM	#9
skid Registered User Join Date: Dec 2003 Location: Left Coast Posts: 254	While you're at it, you should port match the port openings to a felpro 1404 (I think ) exhaust gasket, which is easily done with a die grinder and carbide bit. I spoke with Randy Brzyzinsky of Brzyzinsky racing and he mentioned that if that is done, there is no restriction on your exhaust port. There is no need to port the inside of the manifold, just the port openings according to him. They also sell a mandrel bent 2 into 1 exhaust system which makes much more HP than duals. I bought it but have not yet installed it. www.castheads.com __________________ Toys: 72 K5 Blazer 74 Vette



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