Re: Rebuild 350, 383, big block swap?
Since you plan on towing I'd say either the 383 or 454.
The 383 is basically the same as a 350 with the exception of a longer stroke crank and pistons with a shorter pin height. The rods can be reused or can be longer (6.0" vs stock 5.7") but that just adds more cost as the longer rods are more expensive as is the shorter pistons.
The 383 may get better fuel mileage when not towing but that's hard to say. Depends on how much weight you will be towing and the number of miles you drive while towing. Is it basically flat land or lots of hills? Also, are you going to be mainly towing or just ocassionaly towing?
Lots of variables here ...
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