Thread: Fire wall swap
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Old 07-08-2019, 05:58 PM   #10
rotorwrench
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Join Date: Jun 2010
Location: San Antonio, Texas
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Default Re: Fire wall swap

The indented firewall may be more difficult to find but they still made near a quarter to half million of them. A person can take the whole thing out but they can also clean it up and weld in just the part that was removed unless they cut right up to the edges and took most of it out. If you still have all the indented part for the fuel spigot, you could use one of the new 30/31 flat firewalls to build a good one if you want to keep it original. It just depends on how much is still there.

It's relatively easy to get to both sides for hammer & dolly work after the gas tank is out of the way. A lot of folks love the million spot weld method with a wire feed welder but I just use an aircraft type oxy/acetylene torch with the small tips then weld a little bit at a time. When you can get to both sides, it makes the job a lot easier. If the fit is close, a person doesn't even need filler rod but it's not a bad idea to keep some RG45 around. Wire feed rod it too hard so it has to be ground down. RG45 is soft enough that is will hammer flat pretty easy. Hammer welding is old school but it works well if you master it.
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