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  1. M

    zz4 engine swap

    I would like to swap a zz4 engine for a blown vortec 5.7 in 1999 suburban just purchased. The zz4 is installed in a 1989 burb with tbi, will there be any issues with crank and cam sensors and any other areas of concern? If anyone has done this please advise as I like the zz4 but if too...
  2. M

    zz4 engine swap

    I would like to swap a zz4 engine for a blown vortec 5.7 in 1999 suburban just purchased. The zz4 is installed in a 1989 burb with tbi, will there be any issues with crank and cam sensors and any other areas of concern? If anyone has done this please advise as I like the zz4 but if too...

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