whoo! my Small Block Mitsu rebuild for my eclipse only cost about 1500 bucks in parts(had bad crank, connecting rods) and other costs. of corse we put it all to togather here in our shop so their was no labor cost. but 4 G's for a rebuilt 1.6L engine is crazy. you can buy a ZZ502 Chebby fully assembled crate engine for 7,459.95. it makes 502 horse on pump gas. or for one more example, crate ZZ4 350 has 355 HP for only 3,895.95. but thats with out carb or plug wires.
stu