C2 Heat Shield Saga

[George C.]

I posted a question this morning asking for help with a heat shield. After a few answers and a little research on the archives I figured if I post a picture of what I have maybe someone can see a problem. This was purchased for a 1965 SHP 365 HP 4 speed car. Many thanks to all who have responded. What does this look like, maybe it just got stepped on.

George
#36809

[Gerard F.]

C2 Heat Shield , to add to the confusion

George,

Here are a set of original 67/327/300HP, 4 speed, 2 1/2" exhaust, heat shields (which have been beadblasted):


The short one on the bottom is the right hand passenger side which I am told is incorrect. It lacks the extension but is the one I took off my never been touched exhaust system on a 67. I'm resolved that the right side one was probably one made at the end of a rolling of the sheet metal for the shields and lacks the extension. But I put them back on a repro exhaust system and they fit just right.

Hope this helps.

Jerry Fuccillo
#42179

[Joel T.]

Re: C2 Heat Shield Saga

George,

As I recall, I had a similar problem with heat shields on my '63. I bought them from a reproduction parts house. One went on just fine and the second took a considerable amount of "adjusting". If memory serves, the one which is similar to your picture was the one which gave me the problem. I bent it enough to get the screws started at which time it conformed more to the contour of the pipe as I tightened it.

Hope this helps.

Joel

[Kent K.]

Re: C2 Heat Shield Saga

George ---- This appears exactly like my original '67 327ci/300hp left side exhaust heat shield except it lacks the T-shaped connectors shown in Jerry's photo. Mine still fit the reproduction exhaust system as they did the system that was on my car when I bought it. As I recall, the reduced end with the clamp set back some distance should be attached loosly first above the exhaust pipe bend, then slide the shield down until the rearward portion can be secured around the pipe. Tilt the shield to flow with the pipe and tighten both clamps.
Hope this works for you.
Kent #6201

[Duke W.]

Re: C2 Heat Shield Saga

Most '63s use a different heat shield than later models due to the jog in the pipe that was required to clear the deep underseat floorpan recesses, which were used through a little beyond the midpoint of production.

So you may have the wrong shield for your application.

Duke

[Alan Drake]

Re: C2 Heat Shield Documentation?

Are there any articles on the C2 heat shield?
Checked the AIM and GM Parts Catalog only to find that many, many exist. Some part numbers are gone, some still remain.

I'm not at a point yet to install mine, however if I need to find some then which one's. Looks like a good article for one with the knowledge.

[Michael H.]

Re: C2 Heat Shield Documentation?

Alan,

I agree, some serious research is needed for these shields. I do know this. The length continued to get shorter as the years went by with the 63 shield being the longest. I'm not 100% sure if these shields were modified at the source or possibly at the St. Louis plant in late 63 but they eventually were crudely cut off at an angle on one end. By late 64 or early 65, I believe they were shortened again. Not sure wat other changes may have occured.

I have a set of originals from a mid production 63 that I can post a pic of. If anyone has a set from the other C2 years that they are certain are original to their car, maybe some knowledge can be gained by it.

I believe many of the various part number shields in the parts book are actually identical with the exception of the strap configuration as the 2" and 2 1/2" pipes would require this change.

[George C.]

Re: C2 Heat Shield Documentation?

Well guys thanks for all the comments. The thing that is wrong with this shield is the 20 degree or so bend right about in the middle of the shield. There is just no part of the pipe that is bent that way. I have the AIM and it shows where and how to install the shield but doesn't represent the shape of it. Doc Rebuild has a pretty good picture in his curent catalog, but I don't see that bend in the picture. If anyone has a photo of a shield for a 65 365 HP with manual trans that wouyld be a big help. I attached another photo which better shows the bend in the shield VS the pipe.

Thanks again,

George

[Gerard F.]

Where have you been, Bronx Boy

Doc Rebuild has the blueprints for these heat shields.

Jerry Fuccillo

[Gerard F.]

And George, the exhaust pipe looks too big

for the heat shield, or the other way around. Are you sure they are both 2 1/2".

Jerry Fuccillo

[Tim E.]

Re: C2 Heat Shield Saga

George - The right side heat shield on my '66 300hp/4sp is just like your picture. It installed fine when I rotated it to about the 2 o'clock position when viewed from the rear of the car and with the squared edges forward.

Tim