I am goimg to buy a 3.4 block, I read that the 2.8,3.1,3.4 are the same, what do I look out for to make sure that I dont get the wrong block?

 

Please read my thread, I gave ya, for getting what you seek.
Please note, all the details I gave, for obtianing what you need, for the swap.
Buy your engine, like that and you're good to go.
BUY FROM A REPUTABLE YARD! You are making an investment, that ain't cheap.
Ask around or keep calling.
Or visit the LIE during the night! You should see one or two for parts picking. I understand it takes about 45 secs to pull an engine, there!

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Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA