the costing for the LS1 was about 10k. they make mounts in the US for them. the cosly part is all the little things I would need. like a new ECU fuel pumps and all that jazz. plus the motor and box will cost upwards of 4k. so a barra 6 costing under 100 dollars, a manifold costing around 500 bucks, 1k for webers and another 1k for msd ignition. im still costing less than a motor and box. im hoping to do the conversion for around the 5k mark but im not phase if its 2 or 3k over.