Just find out what size the block will make on the bore and install a 4.250 stroke crankshaft to have your self great package with a lot of low end torque. The complete kit you can get with the Scat or eagle crankshaft, Scat 6.700 I-beam rods. Probe or Diamonf forged pistons, Plasma Moly rings and Federal Mogul bearings. We can zero balance it where your damper and flywheel work from the 390. Let us know if we can help.
Thanks, Keith Craft |