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Disc brake master cylinders for '68-'70 B bodies have the lines toward the engine except for hemis. The hemi and non hemi application disc brake master cylinders are basically the same 1-1/8" bore parts internally, so why they changed to the line toward the engine style in '68 I can't even speculate (in '67 all B body master cylinders had lines toward the fender).
For the last over 20 years, the only replacement 1-1/8" cylinder available new for these applications was the line toward the fender style, which probably explains why you see that part on so many cars. Many would rather rebend brake lines than try to find the lines toward engine style cylinder.
If you check the Chrysler part numbers for B body master disc brake numbers you will find the part numbers for non-hemi are for the line toward engine style.
The cylinder shown in that picture on the green car is an aftermarket '71-'75 disc brake cylinder and the brake lines are not bent in an OE manner.