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Old 04-27-2009, 01:31 AM   #1
GriffithBuilt
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Member#: 141927
Join Date: Feb 2007
Default Swapping '99 SOHC EJ25 Long Block into '93 Legacy (EJ22)

I've got a VW Vanagon that has an EJ22 in it, lots of miles and has developed a rod knock. I picked up a '99 2.5RS long block with 65k on the clock and I'd like to just swap the long block into the place of the failed EJ22 long block, using all of the EJ22 bits - intake, ecu, aftermarket headers, etc.

Is there any reason why the '93 EJ22 engine management system will not work with the EJ25? Looking at the ports on the head, etc it appears as though there may be a slight difference in port size - 100 thou larger on the EJ25 heads with larger injector clearance in the EJ25 head ports as well.

Is there any dealbreaker on using the EJ22 ECU, harness, sensors & intake with the EJ25 long block?

Thanks,

Jason
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