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The 440 low compression pistons with stock rods should work. We had one with TRW L2266F's and they were slightly positive deck. Just contoured the piston tops slightly, cut valve reliefs and they were good for slightly over 10:1 CR with factory open chamber heads. With big valves and a comp cams 306R cam it was a screamer, turned well beyond 7000 rpm and run 10.6/128 mph in a light 2800 lbs '73 Valiant.



That what i'm working on right now. Got some old .030 440 pistons, a steel 383 crank, buckets and buckets fulla 383/400 rods, and a 400 that was recently rebuilt (stock bore). The CH measures out to zero deck, assuming my block is straight. I was told you could hone a 4.34" 400 block out to 4.35 by more than one guy, but it looks like a slight boring job to me. Seems kinda silly to bore a block less than .010", supposedly more like .008", but its still gonna be a pretty welfare build. Just gotta cut some valve reliefs into the pistons, and bolt some 516's on top...