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LS1 and L33 differences

This is a discussion on LS1 and L33 differences within the General Help forums, part of the LSx Technical Help Section category; Need to change out the 250 in my '79 Chevy Stepside. Are L33 mills now more available or are they ...

  1. #1
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    LS1 and L33 differences

    Need to change out the 250 in my '79 Chevy Stepside. Are L33 mills now more available or are they still too new? Any physical differences between the L33 (hopefully $cheap$) vs the LS1 family? (definitely NOT $cheap$) Did L33's come with flywheels vs flexplates? Am I crazy? Have decided to keep the old girl. He he he, I love a demented plan.

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    Bone it like you own it FORD RECOVERY EXPERT's Avatar
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    flywheels are for manuals, flexplates are for autos...

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    Senior Member slims00ls1z28's Avatar
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    2005 GTO M6 Black
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    LS3's are in the same LS engine family the untrained eye probably wouldn't know the difference in the two.

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