400 builds-anybody?? NON STROKER!

  • 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!!!!!!!
And incase you were wondering about a 451 well what can I say I was amazed by that engine. Easy to build and an excellent street motor. I got TF240 from 440 source and let me tell you that I got better than 1st class service from Kim and Brandon. Buy from them. They helped throughout the purchase. I tried a set of 440 source and they were great. I then got a set of TF to put onto my 451 and they were better performing heads but at the same time more than double the price when you factored in the pushrods, bolts , header mods needed. 451 pump gas 10.75 comp cam eddy perf intake and a comp XL285 cam. Just past 610hp and 625TQ very nice street motor with 12" vacuum. Revs like a small block and power of a really healthy big block.Capture.JPG