some info on a 440

426-440, symantics. its 14 inches. Getting back to the problem at hand. the acc pumps on the carb, are they good, move the linkage by hand while looking down the bore of the carbs without the engine running, it should squirt immediantly, no lag, should be about a papers width clearance between the pump linkage and pump arm. trans sounds low on fluid. idle truck for a few minutes and put in D, have helper check dipstick and fill to mid bewteen h and cold. if it still doesnt drive, check Low. auto trans guys will tell you L and D are off different circuits so maybe you got some bad clutches. buddy had a 383 that would overheat, turned out to be a head gasket, he would lose water though. Radiators are not that expensive, but a 318 rad will idle that motor all day. might just need a shroud and a rod out. .070 over on a 440 is thin.