I have a friend thats a 454 BBC motor for 300 bucks, It comes as a standard bore and stroke, all he has is the block, heads, crank, rods & pistons, and the 400 SBC he has block and crank for 200 bucks are they worth it, both are in great shape to build no turn bearings and no ring grove, and good cranks in both blocks. any comments let me know. thanks Bill