1992 pontiac grand prix (Page 1/1) abobaen OCT 14, 08:52 PM car has the infamous overheated possibly warped heads due to leaking intake gaskets never replaced. how diffacult is it to drop the engine to make necessary repairs? css9450 OCT 15, 09:02 AM Which engine? 3.4 DOHC? 3.1 MPFI? abobaen OCT 15, 04:14 PM 3.1 mfpi, I took everything off down to the heads, and the dog bone out. 2.5 OCT 19, 01:52 PM I believe you could do that repair with the engine in the car? carnut122 OCT 19, 07:21 PM quote Originally posted by 2.5: I believe you could do that repair with the engine in the car? That's what I was thinking too. Khw OCT 19, 07:46 PM quote Originally posted by carnut122: That's what I was thinking too. Same here. As long as it wasn't the block that warped (which I've never had happen personally) I have changed warped heads or replaced head gaskets with the engine still in the car. I assume the block could warp as well although it's probably pretty rare unless the block is aluminum but I seem to recall some old Honda street racer friends talking about warped blocks since theirs were sleeved aluminum blocks.