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| | | | Joined: Apr 2009 Posts: 121 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 121 | WHAT HOLES ARE SUPPOSE TO BE THERE AND WHAT HOLES ARE SUPPOSE TO BE WELDED ? 54 FIREWALL | | | | | Joined: Aug 2005 Posts: 1,186 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 1,186 | That looks like an unmolested firewall. I don't think you have any extra holes if you are talking keeping it original.
Bruce
Last edited by 55 1st suburban; 01/05/2014 1:20 PM.
| | | | | Joined: Mar 2007 Posts: 4,215 Moderator | | Moderator Joined: Mar 2007 Posts: 4,215 | I agree. Some of the holes may not be used, such as the one for the heater or the heater valve. There is a cover plate available for the heater motor hole. | | | | | Joined: Sep 2006 Posts: 3,596 'Bolter | | 'Bolter Joined: Sep 2006 Posts: 3,596 | There is a page in the 1954 Factory Assembly Manual that outlines all holes and their purpose I believe? Don't have mine handy but I know it is in there. | | | | | Joined: Oct 2005 Posts: 4,252 "Hey! I sound like Darth Vader!! | | "Hey! I sound like Darth Vader!! Joined: Oct 2005 Posts: 4,252 | I think the two you circled on the right are for the Harrison heater studs. The three on the engine hump, under the cowl drain, shouldn't be there. | | | | | Joined: Apr 2009 Posts: 121 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 121 | i was looking at some picture when i first got my truck . this is how it looked FIREWALL 1 FIREWALL 2 FIREWALL 3 FIREWALL 4 | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | big_dan_1950,
Your photos confirm that you had a non-1954-GM-truck heater. The heater valve is not original, and the GM heater-unit that used a valve would have mounted differently to the firewall.
What heater will you be putting in the truck? If you will use the heater you show, you will need those holes. | | | | | Joined: Apr 2009 Posts: 121 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 121 | it came with the correct heater ,but not with the correct vale . looks like they made it . heater 1 heater 2 | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | big_dan_1950,
Sorry about my error on the heater. The holes in the cowl looked odd. You do have a 53-55 deluxe heater.
| | | | | Joined: Apr 2009 Posts: 121 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 121 | this is what i think should be welded . does this look right ? i dont think the hole with the ? mark is suppose to be there . they had it pluged with a rubber grommet . oops i forgot to mark some holes . ill mark them next time firewall holes firewall mystery hole mystery hole plug | | |
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