Have you had your engine apart. What's it condition? At this stage I'm considering yours. Had offer for a cheap evo motor as well but I guess I would have to change mounts and stuff.You won't get much out of that type of $.
Maybe an NA engine from the wreckers?
Or Ebay sometime has some engines going cheap.
Problem is you don't know the true condition unless you pull it apart or see it running prior.
Was think of the Mahle or Wiseco 86.5 piston. Not too sure on compression ratio. Any suggestions?G4cs has only a single cam head so you need a g4cp head (or vr4 or modded evo)
Also it may have no valve cutouts on the pistons so tread carefully.
Wiseco do 6bolt pistons in 020 over for the g4cs