i took my g54b to get machined for the rebuild im doing and when i got it back there was 2 allen head plugs that came off the block somewhere i found out the bigger one goes on the back of the engine but when i try and get it tight i cant get to flush with the block will that be a problem and for the smaller one i cant find where it goes i have been looking everywhere in the forums and online and i have checked every square inch of the block and no luck can anyone tell me where the small plug go

Not Mine:   http://www.ebay.com/itm/Mitsubishi-Conquest-Starion-Merkur-XR4Ti-2-3-Turbo-Intercooler-/390457636782?pt=Motors_Car_Truck_Parts_Accessories&hash=item5ae916b7ae

I'm looking for a complete poly bushing kit shipped to 94565.