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#1 |
Registered User
Join Date: Jun 2005
Location: Sacramento CA
Posts: 1,255
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Clear coat Intake manifold
Can there be a problem with clear coating an aluminum intake manifold? I have heard that some clear coats can yellow. I plan on bead blasting the intake manifold whether I clear coat it or not but I wanted to hear the opinions of the Board members.
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Got bored, sold everthing. Got bored, looking for a 1960-66 C-10. Want to build my last truck. |
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#2 |
Senior Member
Join Date: Sep 2004
Location: Wakaw, Sask, Canada
Posts: 3,180
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I had one yellow, but that was back in the 80's..maybe clears are tougher now?
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"You can take the man out of PA, but you can't take PA out of the man" |
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#3 |
Senior Member
Join Date: Apr 2005
Location: metro Phoenix, AZ
Posts: 241
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Howdy;
If you block the heat crossover (if your truck will tolerate the "cold" intake set up,not a problem here in Florida), yellowing or even paint burning off won't be a problem. I used VHT brand clear, which they rate as clear engine enamel. Felpro has an intake gasket set with metal block-off plates at the heat riser for those wishing to do the block off thing. Used to have the part number, but need to look it up again myself. If you use composite gaskets w/o the plate (and your heads and intake have the heat passages) the gasket will burn through there in short order. cowboy33713 |
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#4 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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for a long term one time application i prefer powder or ceramic coating
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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 |
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#5 | |
Registered User
Join Date: Jun 2005
Location: Sacramento CA
Posts: 1,255
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Quote:
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Got bored, sold everthing. Got bored, looking for a 1960-66 C-10. Want to build my last truck. |
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#6 | |
Captain Ed
Join Date: Jul 2003
Location: Port Charlotte, FL
Posts: 1,241
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Quote:
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If you ain't bleedin', you ain't workin'! 1999 C3500 LS 7.4L |
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#7 |
Registered User
Join Date: Nov 2000
Location: Huntsville Ontario Canada
Posts: 4,052
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I would not reccomend doing it. I cleared mine and I di dnot have the block off plated installed by the engine builder. Now my intake is yellow and burning where the heat crossover passages or what ever they are called.
I wish I would have left it raw at least it's cleanable.
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1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD |
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#8 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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I had have much better luck with Duplicolor's Cast Aluminum Engine Paint. It has a metallic base (it probably is aluminum) and I have never had it turn yello. It doesn't really change the appearance of an aluminum intake, but it makes it much easier to keep clean.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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#9 |
Registered User
![]() Join Date: Aug 2001
Location: Rocky Mount, MO
Posts: 1,293
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Don't Clear Coat The Intake~!
DON'T CLEAR COAT THE INTAKE~! I did my Edlebrock 2101 Performer with POR-15 Glisten PC which is the strongest hardest clear I have ever found. It yellowed bad near and around the cross over tube areas on both sides of the carb after about 1k miles. I did the valve covers and they still look fine (2 years) I just did the intake again with POR-15 chevy orange this past week. Looks INSANE nice.
Brew |
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#10 |
Having issues
Join Date: Jul 2005
Location: Eldorado Ca, an hour east of sacramento
Posts: 696
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I thougt I posted in this thread already, but I guess I didnt hit the post button. Oh well. I would not clear the manifold. Like previously stated, it will yellow. Ive seen some clears turn soft when they get hot, and crap will stick to them. Paint it your color of silver, and call it good. Espeicially if you are not going to keep it.
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Quando Omni Flunkus Moritati. The Man's Prayer: "I'm a man, but I can change, if I have to, I guess." |
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#11 |
"Trucks with Class"
![]() Join Date: Jul 2000
Location: OLYMPIA, WA, USA
Posts: 8,131
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I haven't seen anything that will not burn off that center heat port, if it is not blocked, except ceramacoat. Powder coat will burn off. I still powder coat some of them silver and them reshoot the center port with silver header paint, after it burns off. Not too bad.
The concours vette guys ceramacoat their intakes and then paint over the top. They say the paint then won't burn off. $$$$$$$$$$$$$$ |
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#12 |
Senior Member
![]() Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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I used Eastwoods exhaust manifold paint on my cast iron intake, hasn't burned a bit or turned color, and looks like an aluminum intake too. Don't know if that paint will work over aluminum though. My crossover passages are open, not blocked.
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 |
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