Guest Eurolumina92 Posted November 30, 2003 Report Share Posted November 30, 2003 are genII 3.1 and 3.4DOHC motors the same block or are they different cause i might be able to get my hands on a 3.4 top end and i was wondering if they are the same motor or not all help and opinions would be verry helpfull Quote Link to comment Share on other sites More sharing options...
Redfox340 Posted November 30, 2003 Report Share Posted November 30, 2003 No. Plus you'll need to bore out 3.1L to make a 3.4L DOHC. - Erik Quote Link to comment Share on other sites More sharing options...
4spdz34 Posted November 30, 2003 Report Share Posted November 30, 2003 they are different blocks the 3.4 block doesn't have the lifter bosses drilled in it, u can't use the 3.1 block Quote Link to comment Share on other sites More sharing options...
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