I checked the bars that came out of my car.....I'm not certain they are the original bars though.
776/777, .880 ......... The std v8 bar, not the. 383-4bbl bars.
I guess if it didn't come with HD suspension, for 68 it would just get the std v8 bars.

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68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads