cuting firewall - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jd4300fel · 08-12-2004, 05:28 PM

Hello,

I need to cut out some of the fire wall to accomadte a new engine.
I could probably leave it alone, but if something ever happened and I needed
to remove the engine I would hate to find out things are too tight.
what if anything do I need to watch for?

71swb4x4 · 08-12-2004, 06:53 PM

What engine are you putting in?

Tx Firefighter · 08-12-2004, 07:25 PM

Wow, if you have to cut the firewall for engine in one of these trucks, it must be a weird engine combination for sure.

crazy longhorn · 08-12-2004, 07:35 PM

The firewall is cutup in my longhorn, but it has run both Olds & Cad over the yrs.....I like em set back as much as possible too! with most of the chev swaps, you shouldnt need to cut the firewall tho.....crazyL

LooseCannon · 08-12-2004, 11:24 PM

Yukon Jack had to massage his firewall to accommodate the BB. Do a search… oh wait there isn’t one.

Tx Firefighter · 08-13-2004, 05:14 AM

Quote:

Originally Posted by LooseCannon

Yukon Jack had to massage his firewall to accommodate the BB. Do a search… oh wait there isn’t one.

Yukon Jack has 4 wheel drives, this fellow has a 2 wheel drive. Different deal entirely. The factory never built big block 4 wheel drive trucks, so he had to modify his. GM built tons of 2 wheel drive big block trucks, so the engineering is done for you.

**Yukon Jack** · 08-13-2004, 10:10 AM

When you cut the firewall, look at where your heater stuff in the cab is so you make sure that won't cause interference. Also look to see if it will interfer with how your gas pedal is situated.

08-12-2004, 05:28 PM	#1
jd4300fel Registered User Join Date: Aug 2002 Location: wheatland, Ca Posts: 427	cuting firewall Hello, I need to cut out some of the fire wall to accomadte a new engine. I could probably leave it alone, but if something ever happened and I needed to remove the engine I would hate to find out things are too tight. what if anything do I need to watch for? __________________ Mike K Friend of Bill W

08-12-2004, 06:53 PM	#2
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	What engine are you putting in? __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.

08-12-2004, 07:25 PM	#3
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Wow, if you have to cut the firewall for engine in one of these trucks, it must be a weird engine combination for sure. __________________ I'm on the Instagram- @Gearhead_Kevin

08-12-2004, 07:35 PM	#4
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	The firewall is cutup in my longhorn, but it has run both Olds & Cad over the yrs.....I like em set back as much as possible too! with most of the chev swaps, you shouldnt need to cut the firewall tho.....crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

08-13-2004, 10:10 AM	#7
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	When you cut the firewall, look at where your heater stuff in the cab is so you make sure that won't cause interference. Also look to see if it will interfer with how your gas pedal is situated. Attached Images __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

08-12-2004, 11:24 PM	#5
LooseCannon Registered User Join Date: Mar 2004 Location: Boiling Springs, PA Posts: 391	Yukon Jack had to massage his firewall to accommodate the BB. Do a search… oh wait there isn’t one.



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