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Well, I can't say that I'm dissatisfied with the performance of my 400 sbc. I don't know if this means anything, but the truck will lay a pretty good streak of rubber on the pavement from a stop(maybe 20-25 feet), with the 3.73 rear gears(open diff).
I also have a 1967 Chrysler 300 with a big block 440/4 bbl, auto with 2.76:1 gears(open diff)...From a stop, the Chrysler will burn rubber for about 60 feet!
In comparing the two, they both weigh near the 4500 lb mark...
The 400 sbc seems to have more "umph" off-the line than the Chrysler, and it's easier to break the tires loose.(probably because of the 3.73 gears, right?)
The Chrysler with the big block is respectable off-the-line, but the sbc would jump out ahead by about a length...but on the highway is where the BB Chrysler comes into its own...at 60-65 mph, the Chrysler would easily pull away from the truck, and probably burry the 120 mph speedometer if kept floored.
But again, I suspect the gearing has alot to do with these differences.
Thanks for all the replies,
Rick
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