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#1 |
Registered User
![]() Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
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finally got my vette 2 1/2" ram horns ready for the thermal coating
well i,ve been polishing, smoothing and port matching the exhaust ports to my copper gaskets. plugging the heat riser holes with 1\8" pipe plugs, i cut off the generator mounts. i hate grinders dust. it was so hot here this summer when the dust got on me it rusted . dont you think i looked nice and the shower, i wont go there it was that bad.....
bob
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I BELIEVE IN JOHN 3:16 Last edited by BCOWANWHEELS; 09-29-2007 at 01:01 AM. |
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#2 |
Active Member
Join Date: May 2007
Location: SO CAL
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Re: finally got my ram horns ready for the thermal coating
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#3 |
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Re: finally got my ram horns ready for the thermal coating
hows this ?
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I BELIEVE IN JOHN 3:16 |
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#4 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: finally got my ram horns ready for the thermal coating
Are those new manifolds, or did you blast them before you polished them?
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#5 |
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Location: Idaho
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Re: finally got my ram horns ready for the thermal coating
Those are gonna look pretty sweet.
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#6 |
laying low
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Location: Searcy, Ark. USA
Posts: 13,271
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Re: finally got my ram horns ready for the thermal coating
Did you grind away the generator mount or cut it with a band saw or something else? Your manifolds are really smooth and will look great coated. Mine have plugs installed on each one where I guess emissions tubes were hooked up. I don't think trying to weld the holes up is an option considering how old these are. They won't be pretty.
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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 |
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#7 |
Senior Member
![]() Join Date: May 2006
Location: Philadelphia, Pa. 19454
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Re: finally got my ram horns ready for the thermal coating
Hey, BCOWAN did your gasket set come with 3 little rivets? The only place I can think that they may go is on the heat shields.
Nice work on the manifolds, I don't plan on going that far, but yours will look really nice coated up. My gaskets match really close, did you have to take alot of matrl. out? Mienke bent up my 2 1/2" yesterday, so I get to play with it today, 200.00 bucks for 4 pcs. J.
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Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
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#8 |
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Location: Southern Kalifornia
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Re: finally got my ram horns ready for the thermal coating
very nice!
-Lance
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#9 |
Senior Member
Join Date: Mar 2007
Location: VANCOUVER ISLAND, B.C., Canada
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WOW!!! Do there ram horns look great! Nice job I can see these on an old rod or one of our trucks. Job done well.
Would like to hear more about thermal coating. How does it stand up with the heat? esll. ![]()
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Tomorrow is for doing today's stuff. ![]() ************************************* This truck has just the right amount of energy for me! ![]() Author: Warren Lake .... (member) |
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#10 | |
Senior Member
Join Date: Mar 2007
Location: VANCOUVER ISLAND, B.C., Canada
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Re: finally got my ram horns ready for the thermal coating
Quote:
You can braze them. I had this done once to eliminate the heat tube (I think that is what you call it) to turn a carb manifold into a fulie manifold. Turned out great. esll. ![]()
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Tomorrow is for doing today's stuff. ![]() ************************************* This truck has just the right amount of energy for me! ![]() Author: Warren Lake .... (member) |
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#11 |
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Location: Sacramento
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Re: finally got my ram horns ready for the thermal coating
+1. I'm doing the same thing now.
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#12 |
Senior Member
![]() Join Date: May 2006
Location: Philadelphia, Pa. 19454
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Re: finally got my ram horns ready for the thermal coating
+2, Hanging to the first hanger, gotta run out and get some hangers. Forgot them, and some 2 1/2" donuts. My kit came with 2" for some reason. Gotta love Mienke
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Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
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#13 |
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Location: KINGSPORT,TN.
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Re: finally got my ram horns ready for the thermal coating
I DONT LIKE TO WELD ON CAST IRON. to do it properly you have to heat the part to be welded to 400 deg. then weld it quickly, return it to oven and normalize heat then cool it slowly or it will crack next to weld. i just used 1/8 pipe plugs ( flush ) to seal heat tube holes. i got these from frank ( pickmup ) there real nice manifolds i think. i had to take a portaband saw and cut off the gen. mounts on both of them. i cut it as close as possible then used my die grinders to finish off the removal of casting then moved on to finer and finer grit buffs for smoothing and polishing. for the exhaust ports i used my intended exhaust gasket for a template and used the mounting bolts through it to hold it in place. ( put bolts in backwards ) then i held all in place exactly where i wanted it and used a scribe to make a cut line on manifolds so i could see where material needed to be removed. , in some places it was little and some places it was alot. ideally you want manifold openning about 1/32nd bigger than head port so exhaust flows with no restriction outward. i,ve been doing head and manifold port work for 25 yrs so this just all comes natural. if anyone needs a set done cost is 200.00 and up for labor.
after alls said and done you glass bead them so coating sticks good. cant make up my mind if i want them black, semi chrome or iron gray coated. what do you guys think ? bob P.S. NO RIVETS IN MY GASKETS i prefer copper competition gaskets they last alot longer imo.
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I BELIEVE IN JOHN 3:16 Last edited by BCOWANWHEELS; 09-29-2007 at 03:18 PM. |
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#14 |
Senior Member
![]() Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 9,516
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Re: finally got my ram horns ready for the thermal coating
Thanks for all the info, maybe after I get this on the road I'll come back and clean up the xhaust flow. I'm just happy with the pipes the way they are. Can't believe a 1/2" on the radius makes such a differance....
I did some head work in high school. Worked at K&G speed shop. Guy named Radar took his time with me, and taught me alot Thanks for the heads up on the copper gaskets, all speed shops carry them??? J. My vote is for iron grey, sorta like the casting before rust
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Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim Last edited by jaros44sr; 09-29-2007 at 03:52 PM. |
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#15 |
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Location: KINGSPORT,TN.
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Re: finally got my ram horns ready for the thermal coating
OH YEA, i did not use the gaskets in the pictures........
bob
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#16 |
Senior Member
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Location: Claremore, OK 74017
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Re: finally got my ram horns ready for the thermal coating
A local shop here is powder coating stuff and told me they had some high temp stuff that would work for exhaust manifolds, but could only do it in black. Anyone tried this?
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