Smoothing/Mirroring Firewall ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Billhilly · 05-08-2010, 10:31 PM

Hey Guys,
Working on my firewall and want to plug the 'blower hole' on the firewall and 'mirror' left hand side contour, over to right hand side (kind of like the red line below). Is this panel normally just 'cosmetic', I mean looks good from the front, but has a gap between firewall/cowl area?? Or do you some how weld in a 'bridging' piece to extend the channel where the stock wiring harness runs? (Want it to look like the bottom photo).
Any thoughts on this appreciated.

basemodel67 · 05-09-2010, 12:43 AM

I don't think you need to worry about making it structurally stronger, if that's what you're asking. But I would make it kinda look like the rest of the firewall, with either a cover over the wiring gutter, or have the gutter extend behind the filler piece you add.

8mpg · 05-09-2010, 01:02 AM

Not structural...It will be fine without any more bracing behind it. I didnt put anything behind mine.

Billhilly · 05-09-2010, 01:32 AM

Thanks Guys,
No, wasn't worried about making it structural. Just wanted it to look 'right' without creating hours of work. Just after some good workable ideas.

Richard H. · 05-09-2010, 09:30 AM

Not a real good angle shot but I mirrored mine and it is not much extra work. I use tracing paper for starting my templates.
HTH ,Richard

jholley · 05-09-2010, 10:02 AM

This is what I ended up doing with mine (when it was still mine). It makes for a much cleaner look if you go ahead and cap the top. It really wasn't all that difficult and turned our pretty well. Here is a link to how it turned out after the new owner painted it.

http://67-72chevytrucks.com/vboard/s...d.php?t=380813

Billhilly · 05-10-2010, 03:42 AM

Thanks for the pictures. I will fill it in at the same level as the origonal one I think. Plenty of other panel work to do. You guys do some great work!

hemihead · 05-10-2010, 11:59 PM

Here's a shot of mine all done, same as above but with paint.

05-08-2010, 10:31 PM	#1
Billhilly Registered User Join Date: May 2001 Location: Wairarapa, New Zealand. Posts: 782	Smoothing/Mirroring Firewall ? Hey Guys, Working on my firewall and want to plug the 'blower hole' on the firewall and 'mirror' left hand side contour, over to right hand side (kind of like the red line below). Is this panel normally just 'cosmetic', I mean looks good from the front, but has a gap between firewall/cowl area?? Or do you some how weld in a 'bridging' piece to extend the channel where the stock wiring harness runs? (Want it to look like the bottom photo). Any thoughts on this appreciated. Attached Images __________________ 1972 K2500 Long Box 400/350

05-09-2010, 12:43 AM	#2
basemodel67 Factory Strippers Rule! Join Date: Mar 2009 Location: Shingle Springs, CA Posts: 707	Re: Smoothing/Mirroring Firewall ? I don't think you need to worry about making it structurally stronger, if that's what you're asking. But I would make it kinda look like the rest of the firewall, with either a cover over the wiring gutter, or have the gutter extend behind the filler piece you add. __________________ "Feast your eyes on a feast of smoke." 67 Chevy Short Fleet PLAN: LQ9, 4L60, D60 Looking for School Bus Gauges - Help me out!

05-09-2010, 01:02 AM	#3
8mpg Registered User Join Date: Aug 2008 Location: DFW, Texas Posts: 389	Re: Smoothing/Mirroring Firewall ? Not structural...It will be fine without any more bracing behind it. I didnt put anything behind mine.

05-09-2010, 01:32 AM	#4
Billhilly Registered User Join Date: May 2001 Location: Wairarapa, New Zealand. Posts: 782	Re: Smoothing/Mirroring Firewall ? Thanks Guys, No, wasn't worried about making it structural. Just wanted it to look 'right' without creating hours of work. Just after some good workable ideas. __________________ 1972 K2500 Long Box 400/350

05-09-2010, 09:30 AM	#5
Richard H. Spanked once Join Date: Oct 2006 Location: Intheshop, Indiana Posts: 969	Re: Smoothing/Mirroring Firewall ? Not a real good angle shot but I mirrored mine and it is not much extra work. I use tracing paper for starting my templates. HTH ,Richard Attached Images __________________ The ole 350 budget build.

05-09-2010, 10:02 AM	#6
jholley Registered User Join Date: Jul 2008 Location: TX Posts: 737	Re: Smoothing/Mirroring Firewall ? This is what I ended up doing with mine (when it was still mine). It makes for a much cleaner look if you go ahead and cap the top. It really wasn't all that difficult and turned our pretty well. Here is a link to how it turned out after the new owner painted it. http://67-72chevytrucks.com/vboard/s...d.php?t=380813 Attached Images __________________ ------------------------------------------------- Jim Garage fillers... 85 Chevy C10 Silverado LWB 07 Nissan Altima 2006 Mini Cooper S

05-10-2010, 03:42 AM	#7
Billhilly Registered User Join Date: May 2001 Location: Wairarapa, New Zealand. Posts: 782	Re: Smoothing/Mirroring Firewall ? Thanks for the pictures. I will fill it in at the same level as the origonal one I think. Plenty of other panel work to do. You guys do some great work! __________________ 1972 K2500 Long Box 400/350

05-10-2010, 11:59 PM	#8
hemihead Registered User Join Date: Mar 2007 Location: Estevan, Sask, Canada Posts: 185	Re: Smoothing/Mirroring Firewall ? Here's a shot of mine all done, same as above but with paint. Attached Images __________________ 1967 SWB C-10, BBC 454, T400, 3.73 posi, 20" Coys 1972 K5 Blazer, SBC 400, 4 spd, 3.73, 6" lift, 35" mud grapplers 2011 Sierra Denali HD, 6.6 L Duramax, RBP 96R rims, leveled and Nitto trail grapplers, 2009 Acura MDX

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