bought a cheap DX back in 08 to commute with. had 200k miles and went 6k before the engine let go. recently had the b2 block replaced with a b7. drove better than the old one ever did. at the end of the day i parked it and all was well. so I take it to get some food and on start up it make loud ticking sounds. drove to sconecutter and on the way home the car started to lose power. felt like a fc running on one rotor. anyone know what would cause this?
I opened the hood and it was real loud knocking.

