F20 and F22 Head compatability
#1
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F20 and F22 Head compatability
After a brief search I couldn't find anything, so sorry if this has been asked a couple thousand times already
Is it possible to install an F20 head onto an F22 without any modification? Thanks, ShocK
Is it possible to install an F20 head onto an F22 without any modification? Thanks, ShocK
#6
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#9
AP1 and AP2 heads are interchangeable. The major difference is the 06+ DBW heads, which do not have the air passages drilled out.
Installing a DBW head on a pre 06 car requires the air pump to be deleted, since there is no provision to run it.
Installing a pre DBW head on an 06+ requires the passages to be plugged. You can do this one of two ways... Tapping each exhaust port hole and installing a set screw with an epoxy to make it permanent, or, tap the main passage on the back side of the head and install a socket head plug (3/8" works perfect).
Installing a DBW head on a pre 06 car requires the air pump to be deleted, since there is no provision to run it.
Installing a pre DBW head on an 06+ requires the passages to be plugged. You can do this one of two ways... Tapping each exhaust port hole and installing a set screw with an epoxy to make it permanent, or, tap the main passage on the back side of the head and install a socket head plug (3/8" works perfect).
#10
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I usually just weld the ports up... you can drill and tap any number of places, you can even install the cover and gasket and air pump valve on the 06+ manifold.. lots of ways to do it.