[semopontiacman]

Why is it that everytime I paint the heads before installing them,on the first week of running, I burn the paint off the center exhaust ports.How do I keep this from happening?

[semopontiacman]

Why is it that everytime I paint the heads before installing them,on the first week of running, I burn the paint off the center exhaust ports.How do I keep this from happening?

[Larry Navarro]

POR-15 HIGH HEAT(POR-20)SILVER BOILER PAINT
....use as a base (or primer if you will) before applying the pontiac blue or whatever you want.

1973 SD455 T/A
1979 S.E. T/A
http://community.webshots.com/album/16587603rOyvmFCiHs

[Dave Schiffers]

Hey Larry....are you able to post a photo of an exhaust port that has been painted and then run for a while to show if it even discolours some?

[Larry Navarro]

Don't have a current photo BUT to keep from misleading anyone, the paint will discolor some.
I haven't seen anything yet that will keep that from happening. Using the POR product does greatly minimize the peeling or burning-off paint problem. Its better that getting aggravated.
Also, if you have to "touch-up" the areas on the port, say like for a show, use a foam sponge brush and dab the paint on the surface. It works better that getting overspray on everything from a spraycan.

1973 SD455 T/A
1979 S.E. T/A
http://community.webshots.com/album/16587603rOyvmFCiHs

[rickschabener]

Larry, Have you found the Light Blue paint in a regular can (not spray can)? I can only find the Pontiac Light Blue in a spray can (#208 rings a bell). Thanks, Rick

[Anne's GTO]

I used Por 15 high heat paint on my 64 GTO Tri-Power exhaust port crossover about 2 months ago and it holding up great.I painted only the area on the top where the engine paint{Pontiac 64 blue}burns off.I tried Bill Hirsh engine paint and let it cure 3 weeks and it cooked it in 1 day.The Por 15 is a nice dark Silver grey.Much better color than the Eastwood paint.I'm tired of looking at burnt paint.

[JosephO]

I remember reading somewhere (one of the Pontiac boards) not too long ago about using only a very light coat of paint over the exhaust ports. Paint that's too thick would tend to hold the heat and discolor & burn. I failed to make a note on the matter and now I can't find that particular post again. I'm way off from having to deal with this subject on my own car but I'm trying to document some of these little tricks.

Two (2!) 1969 GTOs in storage since 1994-- one's nice, the other's not

[Larry Navarro]

OH YEAH!...correct, JoeO!
go easy on the color coat, use just enough to cover.

1973 SD455 T/A
1979 S.E. T/A
http://community.webshots.com/album/16587603rOyvmFCiHs

[72 LeMans]

On my 350, I just went light on the area because heavy coats trap the heat causing it too burn off.

1968 Pontiac GT0-400/M-21/3.90 Burmuda Blue with White Royal Bobcat stripes
1972 Pontiac LeMans-455/TH400/3.55's Cardinal Red. Hoping for high 11's