That's why I love those old Hookers.
They are just so easy to get into and out of.
Love Hookers.

Too much information!!!   

I can't lie though.  I have a couple old Hookers in my car as well. 

This thread might be of interest. HTH

Deja Vu?

I think someone might have hijacked the Mark fella's account.

In general, the main difference between those two engines is the stroke.  360 is 3.5" and 390 is 3.78".  Bore is the same on both at 4.05". There are of course differences between heads, camshafts, etc. used on different model years.  Difficult to answer without knowing more about each engine.

Holy!  I got the short end the stick for sure. The square end on my tap is 7/16 and the hole on the blocks were too small to fit that end of a 3/8 extension.    

Thanks gentlemen! That clears things up lol. Anyway, I guess I'm on a mission to do the screw in deal. I do have the Pioneer plugs and they are shorter and more flat on the end than the original plugs that were in the other holes. First thing,found my tap was too short,nobody in town ever heard of the extended reach variety. Ordered one online...they don't give them away. Update to follow...

I enlarged the hole on the front of the block to allow using a 12pt socket with an extension on the reamer and tap.  I did that after deciding that it wouldn't be detrimental to do so.  With that being said, if my understanding of enlarging the hole on the front of the block is incorrect and anyone knows of any issues it could cause, please let us know.

Trickflow doesn't have heads available at the moment, but they do have the Tunnelwedge intakes readily available.  At this point in time, it seems like getting components is a multi-vendor endeavor for just about everything needed to assemble a complete engine.

Are the pics of the heads on the website current?  I ask since the upper exhaust bolt holes shown on the website are the same as stock heads and not "blind" holes.  I honestly don't know how a blind hole would stand the test of time, but I have had numerous experiences with those upper exhaust bolts in stock heads.

He didn't tell us this, but any wise business you'd assume would start by getting their most popular products back on-line and work your way down the list.

I agree with that statement wholeheartedly.  The part that concerns me the most (I forgot to mention it earlier) is that along with the heads being marked as "Not Available", you can no longer choose FE as an option for their Ford head offerings on their website.  That tends to make me think it might be something more than just getting a product back online.  I certainly hope that isn't the case though.