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head interchange

Moderators: Curt!, Pa



Posts: 532

Joined: Mon Apr 15, 2002 12:01 am

Location: Wa, USA

Post Thu Jan 14, 2010 7:33 pm

head interchange

Do 06 heads fit on an 05? I know that the intake and FI body are one piece on the 06 as opposed to separate on 05, but does the 05 style bolt up to 06 heads?

Lee W

Posts: 149

Joined: Sat Sep 23, 2006 8:58 pm

Location: Carver, MN

Post Sat Jan 16, 2010 4:27 pm

Re: head interchange

The intake flanges/pattern are slightly different, however if you use the '06 and up flanges on the '06 and up heads, they will fit on an '05 and earlier Twin Cam. Works the other way too. To use '05 and earlier heads on a later model you need to use the '05 and earlier intake flanges. The '06 and up flanges are interchangeable front to rear; the '05 and earlier are not. I assume that is why they made the change.

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