Re: Henry's 55 Constellation

Posted by HH56 On 2016/7/26 22:35:02

I believe the 4 large holes are where the heater plenum actually mounts. They are probably 1/2 in the front but IIRC, the holes in the jute padding behind the exposed holes are larger. You might look at your car and see how large the square brackets that extend from and are spot welded to the firewall actually are.

Here is another photo showing the plenum in place and some of the brackets exposed.

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