I can get my hands multiple complete non running stock 440's for cheap. Some from c-bodies, others from motor homes. I think they all have 452 heads.

My car is a 71 B, and it has a PTC 3000 stall, 1 7/8" headers, and 4.10 gears. 727 auto.

If I disassemble and take the parts to the machine shop, is it possible to achieve 400+ hp and similar torque though block machining, mild head work and different cam on a $2000 budget? I would also be paying for the short block assembly

I know the flat top stocker pistons are limiting factor on cam lift, so if the block is zero decked, whats the most lift I can use?