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Old 10-08-2011, 01:10 AM   #1
70c10-08
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firewall differences

I allready know the differences between an ac firewall and a non ac firewall but whats the difference between a 67 drivers side of the firewall and a 1970 cuz I noticed on my 1967 and my 1970 donor firewall the holes are a lil different would i have to swap the drivers side of the firewall or not?
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Old 10-08-2011, 01:14 AM   #2
67chevy1series
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Re: firewall differences

1967 fire walls are completely different from the 68 72.... the firewall was for a hand e brake and it wasnt opened up better for a big block to fit in there. the 67 68 fire wal on the driers side is the same. they both use hand e brakes and no the 69 72 foot e brakes. that is the differences.
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Old 10-08-2011, 01:18 AM   #3
chewychevy67
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Re: firewall differences

e brake mounting is different and so is the location of the fuse box. on a 67 the corner of the engine pocket on the heater/ AC side has a indent at the bottom and 68-72 are smoothed out. I believe this was changed in 68 to accomodate the introduction of the big block.
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Old 10-08-2011, 01:52 AM   #4
67chevy1series
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Re: firewall differences

you are correct sir. ^^^^^^^^^^^^
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Old 10-08-2011, 06:17 AM   #5
bobs409
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Re: firewall differences

Here's the difference:

The one on the left is a 69 and the one on right is a 67/68.

If you need the 67 style shown, PM me.
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63 Impala 283/PG/3.36 (under restoration)
66 Impala 327/PG/3.36
66 Chevelle SS 409/M22/3.55
69 Chevelle 307/PG/3.08 (future restoration)
69 C10 short stepside 454/TH350/3.73
69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!)
71 Cheyenne 20 fleetside 350/4 spd/4.10
71 Chevelle 6/PG/3.08
72 Chevelle 454/M21/4.10
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Old 10-08-2011, 08:50 AM   #6
70c10-08
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Re: firewall differences

I thought Id have to switch the firewall but I wasnt sure
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