We always used the exact same year used engine when we replaced them at the saturn dealer.I would stick with the 2000-2002 dohc saturn S model engine's.There is a couple of earlier year engine's then that i think that would work if you changed the intake and some sensor's etc.But if you stick with the 2000-2002 dohc the intakes,injectors,sensor's wire harness should match up.Let me know how it goes.

Answered by saturntech9 (expert)
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