For those who are looking very closely at the photos....yes, I have ordered black zip ties.  Didn't have them at the time.

Very much like what I did with my 38 before purchasing an accurate repop mat.

Looks fabulous!! Great job!

Thanks Guys!  The53TwoTen - just off hand, do you still have the 68 SS Impala and if so, what condition?  It's been many many years since I've seen one. Typically I see Impala years of 61-64 for some reason in my area (RI & MA) Back in the day an old friend had a 68 Impala standard model which we swapped out the motor and auto trans with a 327 and 4 speed tranny.  I had a 68 Chevelle Malibu which had a blown 307 motor with an auto trans.  I dropped that motor and installed a 64 327 motor.  God, I wish I still had that 68 Chevelle.  Old memories.

That looks great! I may do that to my car for the same reasons. Where did you get the rubber mat?

Posted by: @stovebolt-6

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That looks great! I may do that to my car for the same reasons. Where did you get the rubber mat?

Our local Ace Hardware carries rubber mat similar to that. I got the material at the <YARD STORE> when I made the mat for my 38. At that time reproduction mats weren't available. I put the ribbed side down on mine. I also glued a jute substitute to the bottom of mine to soften the feel.

Tiny, your mat project looks good too!

I bought my 3x4ft ribbed mat from amazon for 25.32. I chose to have the ribbs showing to trap debris.  My mat from amazon is listed as; Rubber-Cal 03_167_W_FR_04 Fine Rib Corrugated Rubber, Black

Yes, the rubber mat smelled like rubber for about two weeks.  I took it oit of the box right after I had made the paper mat image to transfer and cut the rubber mat.  I could have taken the mat out of the box earlier, to lessen the smell, but I didn't expect the heavy smell until I pulled it oit of the box.

Overall, it was a simple process.  Note, I applied a small 1 inch x 1 inch velcro stick on patch at the left and right upper corners of the mat to the truck flooring as the mat travels towards the underside of the dash.  This way, the velcro prevents the mat from rolling downward from the top, so to speak, and for easy removal for washing.

That looks like it came out nice. Just so you know the large hole in the firewall would have been for an aftermarket air type manifold heater from many years ago. The largest original hole in the firewall was for the oil gauge line and it was probably only 5/8" in diameter. 

@arthur-p-sell Thanks again Arthur.  I took your input on why the large 2-1/4" cowl hole was for an intended heating inlet.  And I did research and found how that shielded process around the manifold would be the source for heat to bring to the cab.  That design is very interesting.  That's another future possibility for my 29 projects.

Thx, G

Even on the earlier models equipped with a tube that directed hot air from the exhaust manifold to the carburetor there was no hole through the firewall. The large hole was for a cab heater.

On the 6 cylinder model by placing the carburetor next to the exhaust pipe it effectively eliminated the need for an auxiliary heat source to keep the carburetor from icing up.

@junky I have an aftermarket Chevy manifold with integral heater. I am not sure of the years it fits. I will never need it. Lety me know if you are interested.

Mike

@35mike Thanks Mike, I don't plan to use my 29 Truck in the cold winter months of New England.  As to having a spare manifold, I haven't done any research to see if manifolds for the 29's are somewhat rare.  My existing manifold is in good shape.  Are the 194 engine exhaust manifolds rare?

I don't know how rare they are. I think I have one of those early updraft manifold around somewhere. I think there are minor differences in 1929-1931.