the blocks are interchangable from 89-02. 03 up has different front gear case holes but generally the same block. the HP differences come from the injection pump. 88-93 they had the bosch "VE" pump....
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the blocks are interchangable from 89-02. 03 up has different front gear case holes but generally the same block. the HP differences come from the injection pump. 88-93 they had the bosch "VE" pump....