Firewall question

[blown49]

Any thing special we need to know about building the firewall for our HA/GR car? Gauge metal? Insulation?

Also tranny is attached to a '49 Merc or truck Steel bell but tranny has the large cast bell that attaches to it. Flywheel, clutch disk and pressure plate are covered by the steel bell. Need a scattershield? Recommended thickness?

Sorry for the questions but need to get it right the first time.

Thanks in advance.

Jim

[REJ]

Jim, I'm no expert on this, but I used the same gauge metal that I made the sides out of for my firewall. It is probably 14-16 gauge.
As far as the scattershield, I had to make mine as the tranny is aluminum. Try and find one for a slant six truck tranny.:eek:

[GMC BUBBA]

We also made our firewall with the same gauge aluminum as the side body panels. I think it was 050 aluminum.

I dont know about this class but on our flathead powered bonneville truck we had to make a 1/4 inch wrap around the factory bell housing in the clutch and flywheel area. The scta wont allow just the ford merc housing for some reason.
Beats me on this one though??.

[Drewfus]

our firewalls were 1.6mm alloy (same as the rest of the body panels), and we made a 1/4 mild steel scattershield to suit...whilst a bit more weight added, it gave us something to lock our firewall into, as well as the floor panel. We like having toes on our feet.

Cheers,

Drewfus

[blown49]

Thanks for the feedback gents.

Jim

[Joe Hamby]

Thin aluminum fire walls. fuel fires burn at around 2000 deg. and aluminum burns away at 1100 deg.

[64 DODGE 440]

Thin aluminum fire walls. fuel fires burn at around 2000 deg. and aluminum burns away at 1100 deg.

Roger that, get a piece of stainless, or at least use an old galvanized trashcan if you want a real period look to it.

Burns hurt for a long time, better to try and avoid them.