[WVslottech]

I realize you probably already know this ...but i'll tell you anyway.I have worked on alot of 3.4 liters.I have also found that alot of the problems lie in the heads,because they warp from bad gaskets from the factory similar to the dodge neon.If you have redlined the temperature I would not recommend putting it back together unless you have the cylinder heads flowed and pressure tested,because if you over heated it or went into the red with it you have warped or cracked the heads.You are right though they did come in 90's gm's.I am not trying to be a goof but I did the same thing you are doing 3 times before I junked my 97 grand am.I found that the problem wasn't anything more than a plugged radiator.If you do find that the heads are warped take them and have them milled to get them back to true.Also make sure you get the right thickness gaskets to accomodate the couple thousanths you will remove from the heads.