Per your requests, I have come up with a new shortblock design based on our new, roller 408. Part #: BPC4085 $2799 Not on the website yet. may be a while for that. But I CAN/WILL take orders. Roller Cam ready Cast Steel Crank Forged PistonsBLOCK:Hand picked seasoned block Square and parallel decked Align honed main bearing bore Cylinders honed on computer controlled machine to within .0002 straightness and roundness Cylinders are sonic tested for thickness 2-Bolt Main 4.000" Bored .040" over 2-Piece Rear Main Seal Mech fuel pump provision: YesROTATING ASSEMBLY:New Cast steel crankshaft 4.000" Stroke OEM type 6.123" connecting rods w/ 150,000 psi bolts Forged pistons Magnum Balance Snout, LA360 balanced rearSupports cylinder heads/rockers that can utilize pushrod oiling only.