[OVERULD]

Hmmmmmm.....I wonder if we'll see this car featured in a future "Shoot-Out" article in HPP???

BJ

[giles]

I could have started a new thread on this but since it is my 455th post I figured that it ought to go here!

What is the general consensus on the most heat resistant engine paint? I had a nice mix made to match the '71 color and of course it burned off the exhaust ports in less than 100 miles!

[giles]

Beuhler....anyone....?

[Transamric]

Chris,...my method for keeping the exhaust port paint relatively healthy, is impossible to do on a together-in-a-car deal, but FWIW, here it is. After cleaning the bare heads, I glassbead the ports till they're spotless. Then a quick rinse off with laquer thinner. Then I dry spray, fog coats of VHT High Heat White header paint. Very dry,...very light coats. Usually 5 or 6, with about 1/2 hour in between each coat. Let them sit over night, at 70 degrees plus, & then shoot my favorite brand of engine paint. I have several cans of old obsolete TRW Service Line paint for the '69-70 Metallic Blue, & I use the expensive OEM paint for '71 & '72. My '69 350HO is the longest time use I've had using this process, & it still looks good, just a bit darkened.

[2manyT/A'S]

Originally Posted by Transamric

Chris,...my method for keeping the exhaust port paint relatively healthy, is impossible to do on a together-in-a-car deal, but FWIW, here it is. After cleaning the bare heads, I glassbead the ports till they're spotless. Then a quick rinse off with laquer thinner. Then I dry spray, fog coats of VHT High Heat White header paint. Very dry,...very light coats. Usually 5 or 6, with about 1/2 hour in between each coat. Let them sit over night, at 70 degrees plus, & then shoot my favorite brand of engine paint. I have several cans of old obsolete TRW Service Line paint for the '69-70 Metallic Blue, & I use the expensive OEM paint for '71 & '72. My '69 350HO is the longest time use I've had using this process, & it still looks good, just a bit darkened.

Any idea how many hours/miles are on the 350 HO since your paint treatment?

[Transamric]

2many (is there really any such thing as too many??), I first ran the engine in the summer of 2000. Have about 900 miles on the car. Hours running time? Hard to say, since I had to run the engine a ton before the car ever rolled one single inch. It's a long story, but my trusted machine shop miss-bord the block. Had to tear it down & replace a few parts. Maybe 80 hours total.

[74 SD455 Formula]

I wish all of you and your families a good & safe Happy Thanksgiving. Enjoy the Turkey and may the Cowboy's lose ( blame it on T.O.) and maybe the Lion's win there first of the year.

[Father&Son73T/A]

Originally Posted by 2manyT/A'S

Any idea how many hours/miles are on the 350 HO since your paint treatment?

Wasnt someone powder coating heads like Ram Air Research or something?

[giles]

Back to the subject of 455HOs....

Originally Posted by Transamric

Chris,...my method for keeping the exhaust port paint relatively healthy, is impossible to do on a together-in-a-car deal, but FWIW, here it is. After cleaning the bare heads, I glassbead the ports till they're spotless. Then a quick rinse off with laquer thinner. Then I dry spray, fog coats of VHT High Heat White header paint. Very dry,...very light coats. Usually 5 or 6, with about 1/2 hour in between each coat. Let them sit over night, at 70 degrees plus, & then shoot my favorite brand of engine paint. I have several cans of old obsolete TRW Service Line paint for the '69-70 Metallic Blue, & I use the expensive OEM paint for '71 & '72. My '69 350HO is the longest time use I've had using this process, & it still looks good, just a bit darkened.

I decided to reproduce Ric's process as much as possible with the engine in the car...
Since the non high temp paint recently burned off of the exhaust ports, the heads had no evidence of rust. I cleaned the areas with paint pre-cleaner, and painted the port areas with VHT 1500 degree light grey engine paint (FWIW the masking job was the biggest pain in the whole process) I then shot the areas with OEMs 71 Pontiac blue engine paint (ridiculously expenseive at $42 a can from Classic Industries) and it is a pretty good match. I have about 50-60 miles on it when this picture was taken and no evidence of any further burning.