You can lift the engine from the oil pan ~1/4" - 1/2"; anymore than that and you risk damaging the exhaust connections, fan blade, etc.

It doesnt take too much space to get the old one out; pending how collapsed they are you might need more room to get the new one back in.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)