Sounds like the head is cracked/warped. Try turning the engine over with a socket/ratchet on the balancer bolt. If it won't turn it may be siezed.
You can find a used engine at a junk yard (4A-FE or 4A-GE).
I replace the engine/tranny in my '91 last year for $900, (did the labor myself).
Wednesday, June 27th, 2007 AT 5:44 AM