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im sorry i sounded so mean there, but, if you like all the power and dont care about originality, then you made a good choice. I like 289's because the cranks. They have shorter strokes, which is better. Then you can bore out a 289 to a 302, because a 302 is a 289 block.
the 289 has a 4" bore same as the 302 but it only has a 2.87" stroke the 302 has the 3" stroke so think of it as a stroker 289 if you like anything for power the 289 had little better casting than 302