What firewall holes for painless harness? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

muddpile · 03-15-2006, 12:39 AM

I am in the process of welding any unused holes in my firewall shut, and just wondered which holes the painless harness used. I understand you enlarge the square hole, but what about the two round ones above it and the two other round ones by the distributor?

Blue85 · 03-15-2006, 12:53 AM

The one directly above were the throttle cable comes through is not used, thats the only one i welded up.

jugernot · 03-15-2006, 03:32 AM

This was posted by someone in a similar thread.

'72 Shorty · 03-15-2006, 04:06 AM

the hole for wiring in the above pic isn't used on the painless harness.

muddpile · 03-16-2006, 12:26 AM

Looks like I can weld up most of them then. I've re-routed my wiper system, so that gets rid of that hole, plus I have an electic oil pressure gauge, so that hole is not needed either. Thanks!

03-15-2006, 12:39 AM	#1
muddpile Registered User Join Date: Dec 2004 Location: Saskatchewan, Canada Posts: 1,371	What firewall holes for painless harness? I am in the process of welding any unused holes in my firewall shut, and just wondered which holes the painless harness used. I understand you enlarge the square hole, but what about the two round ones above it and the two other round ones by the distributor? __________________ 1964 Chevy Short Fleet: Tornado 1972 Chevy C10: Fast Orange Secondaries Wide Open

03-15-2006, 12:53 AM	#2
Blue85 Oilfield Trash Join Date: Sep 2003 Location: Raymore, Sk, Canada, Earth Posts: 3,171	Re: What firewall holes for painless harness? The one directly above were the throttle cable comes through is not used, thats the only one i welded up. __________________ 14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr.

03-15-2006, 03:32 AM	#3
jugernot Life, Be In It..... Join Date: Oct 2003 Location: Novato, California Posts: 1,498	Re: What firewall holes for painless harness? This was posted by someone in a similar thread. Attached Images __________________ Project Name: LEMON DROP. Reconstruction started "December 2000". Projected completion date "Who knows" http://67-72chevytrucks.com/vboard/s...d.php?t=200082

03-15-2006, 04:06 AM	#4
'72 Shorty I finally got an avatar Join Date: Jan 2003 Location: Cheney, WA Posts: 180	Re: What firewall holes for painless harness? the hole for wiring in the above pic isn't used on the painless harness. __________________ -72 C-10 short step (straight line only) 12.922/102.28 -69 C-20 on Propane (DD) -69 C-10 -56 Mack B-753LS (tow rig) -94 Chev K2500 Short Ex-Cab -89 Isuzu Trooper...Kinda -03 Kawasaki KFX-400 -05 Suzuki DRZ-400S

03-16-2006, 12:26 AM	#5
muddpile Registered User Join Date: Dec 2004 Location: Saskatchewan, Canada Posts: 1,371	Re: What firewall holes for painless harness? Looks like I can weld up most of them then. I've re-routed my wiper system, so that gets rid of that hole, plus I have an electic oil pressure gauge, so that hole is not needed either. Thanks! __________________ 1964 Chevy Short Fleet: Tornado 1972 Chevy C10: Fast Orange Secondaries Wide Open

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