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Re: Project "Haulin Crap" 1986 CC dually.
Quote:
Originally Posted by monte0185
Best Guess would be about 1800-1900. I know mine drops considerably. Im going to drop in a 4l80E and back it with the GV OD unit over the summer if i dont have to spend a whole lot on paint replacing doors and such. That way I have Over/over/drive. LOL
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Lower rpm doesn't necessarily yield better efficiency. The 4l80e would have a .75OD (25% drop) then the GV would be .78 (22% additional drop). So if you were @ 2600rpm @ 65, that combo would yield around 1500rpm @ the same speed. I'm guessing most BBC's want 2K or better to breathe.
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67SWB-B.B.RetroRod
64SWB-Recycle
89CCDually-Driver/Tow Truck
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@rattlecankustoms in IG
Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....
Cubic inches is like Indiana Jones with a cheap pistol.
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