Sorry but they lack the basic machining skills and engine assembly skills, would not have them even touch even a plastic model of an engine.
Fact is they ruined a perfectly good engine 2 times over to the point it is not even usable. And would not back up there work.
The first go around they installed a connecting rod cap backwards which took out the rod journal and 2 rods and did not gap the piston rings as per manufacturer specifications which destroyed cylinder bores and piston ring grooves.
After putting 8 sleeves in the block and going to .040 over so they could reuse the pistons that they hacked up. Cutting chamfers at the top of the cylinder bores so big the head gasket would never seal in 3 cylinders.
Top it off they must have installed main caps they found laying around for another block, bolt holes don't match and the caps are offset from the main bores.
Great job guy's...........NOT
Complete disgrace to the automotive world