U WANT BIG HOURSE POWER FOR YOUR MODIFIED I GOT IT! This thing is all steel 4"bore 4" stroke 427 PROFESSIONALLY  BUILT and fresh, dart block,Je piston, huggins roller cam, dart 230,rev kit, sheetmetal alum valve covers, canton race pan,TO MUCH TO LIST,complete pan to manifold .This thing is dynoed @ a true 618hp not no made up # this motor will set u back in the seat! CAN PUT U INTOUCH W/MOTOR BUILDER.
DUANE CLEVELAND 530-682-5141  MOD10C@COMCAST.NET  the first   $9000.00 takes it. cost $15000 to build and just pd $3850.00 to fresh