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Re: Big Bertha Build thread x2
Quote:
Originally Posted by OrrieG
How much is the gas mileage difference between the old SB and the new BB? I am dragging a 69 C30 back from Oregon to set up for towing like yours and think I might trade out the 327 for a BB.
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Orrie, sorry I did not see your question a while back. I am getting the same gas mileage but am able to come up the big hills about 10 to 15 mph faster. it hardly ever drops out of overdrive and it has to be a monster hill to drop to second gear. I do like the power of the big block. The tranny did not. Torque converter clutch went and smoked the tranny. Its been rebuilt and should hold up now.
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1959 Apache Short Fleetside,
1959 Apache NAPCO Long Stepside,
1957 3100 with 59 fleetside bed
1957 5700 LCF Crew Cab "Big Bertha",1959 GMC F370
1958 GMC 600, 1946 Chevy, 1959 Viking 60 LCF
1974 Elcamino SS, 1979 6500 GMC Tilt Bed Wrecker
Big Bertha Build
Last edited by buggy5872; 12-22-2014 at 11:41 AM.
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