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#1 |
Senior Member
![]() Join Date: Mar 2015
Location: washington
Posts: 2,244
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firewall for the 4x4 vers 2x2
suburban posted this:
"As a side note the firewall for the 4x4 is different from the non 4x4". Can anyone explain the differences? |
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#2 |
Born Psycho
![]() Join Date: Feb 2001
Location: brentwood,cal,usa
Posts: 4,884
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Re: firewall for the 4x4 vers 2x2
there is no difference in the firewall, just all 4x4 cabs are high floor hump but a 4x2 with a big block is a high hump also. i put a 71 2wd cab on my 69 4x4, just had to cut the floor for the high hump. factory bucket seat cabs from 69-72 have the mounting plates for the buckets welded underneath. 71 cabs have the raised boss in the roof for the rear view mirror. if i remember correctly 67 and maybe 68 cabs have some differences behind the gas tank.
__________________
jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA |
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#3 | |
Senior Member
![]() ![]() Join Date: Apr 2022
Location: Hillsboro, Oregon
Posts: 453
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Re: firewall for the 4x4 vers 2x2
Quote:
67 firewalls are unique as the recess for the motor in the middle is smaller overall due to no factory big block option. The modified the firewall in 68 to clear for a big block on the passenger side.
__________________
The Twins: 1968 C10 SWB - Blue 327/5 Speed 1968 Camaro SS/RS - Blue 327/4speed C10 Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=833278 The "Others" 1933 Ford Pickup (Camaro in disguise) 2017 Camaro SS Life long Chevy guy |
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#4 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: firewall for the 4x4 vers 2x2
Correct. No difference. You've been misinformed. The K-model engines sit back tighter to the firewall is the difference in motor mount locations
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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