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Originally Posted by Karnage
Difference between 05 and 06 engine?
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I believe the 05 was the EJ207 and the 06 was the EJ257.
207 is normally said to be the stronger engine and can handle a lot more punishment than the 257 can without having to modify/re-enforce the block of the 257.
Quote:
The Ej257 is built from the same design as the EJ207 block, but sacrifices cylinder wall thickness and coolant chamber volume in order to achieve more displacement.
While this produces more low end torque, it lowers cooling capacity and cylinder strength.
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