A little firewall help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Leonard1 · 02-27-2012, 09:40 PM

Here's a pic of my firewall, can someone tell me what the two holes in the center of the engine bump are for? I can't see any use for them in my reference pics.

Dano69c10 · 02-27-2012, 10:02 PM

I think one is for the oil guage tubing and the other holds part of the heater/ac.

MisterRon66 · 02-27-2012, 10:06 PM

On my 1970 chevy c10 the one to left of center has nothing coming through the firewall, can see jute pad. The one to the right of center has a screw coming through the firewall which could help hold a bracket attached to a part of the heater box.

pat 70/71 · 02-27-2012, 10:29 PM

If your talking about the small holes at centerline on my 71 they were a rubber barb sort of thing that held the insulation to the inside of the fire wall. cheers, Pat

Leonard1 · 02-28-2012, 01:57 PM

Thanks for the replies. I'd forgotten about the heater box under the dash.. I'm going to fill all the unused holes to clean up and smooth the firewall. Thanks again!

02-27-2012, 09:40 PM	#1
Leonard1 Registered User Join Date: Nov 2005 Location: Paducah, Ky Posts: 393	A little firewall help Here's a pic of my firewall, can someone tell me what the two holes in the center of the engine bump are for? I can't see any use for them in my reference pics.

02-27-2012, 10:02 PM	#2
Dano69c10 Senior Member Join Date: Jan 2005 Location: Ontario, Kali Posts: 2,427	Re: A little firewall help I think one is for the oil guage tubing and the other holds part of the heater/ac. __________________ '69 Fleet It ain't yours, if you didn't build it!

02-27-2012, 10:06 PM	#3
MisterRon66 Registered User Join Date: Aug 2008 Location: Spring tx Posts: 10	Re: A little firewall help On my 1970 chevy c10 the one to left of center has nothing coming through the firewall, can see jute pad. The one to the right of center has a screw coming through the firewall which could help hold a bracket attached to a part of the heater box.

02-27-2012, 10:29 PM	#4
pat 70/71 Registered User Join Date: Nov 2009 Location: newbury park california Posts: 1,038	Re: A little firewall help If your talking about the small holes at centerline on my 71 they were a rubber barb sort of thing that held the insulation to the inside of the fire wall. cheers, Pat

02-28-2012, 01:57 PM	#5
Leonard1 Registered User Join Date: Nov 2005 Location: Paducah, Ky Posts: 393	Re: A little firewall help Thanks for the replies. I'd forgotten about the heater box under the dash.. I'm going to fill all the unused holes to clean up and smooth the firewall. Thanks again!



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