- Advertised Duration (Int/Exh): 262/268
- Duration @ .050 (Int/Exh): 220/226
- Gross Valve Lift (Int/Exh): .475/.494
- LSA/ICL: 112/108
- Valve Lash (Int/Exh): Hyd/Hyd
- RPM Range: 1400-5800
At that point if you would get custom pistons, (because with the exception of KB240 there are no 400 stock stroke pistons) and the would be lots of $$$ I would be cheaper to get a 440 steel crank ground down to 400 mains and counterweights cut down use 440 rods and 1.32 CH pistons that would be readily available. This makes a great combo. Torque is unbelievable. It all depends on how much $$$ you want to spend and how much power you want. Het I've done a 470" 400 that would pull trees down LOL!!!!!!!