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Author Topic:   77 heads

Posts: 371
From: sayreville,nj
Registered: Apr 2001

posted 03-13-2002 08:42 PM     Click Here to See the Profile for todmeg   Click Here to Email todmeg     Edit/Delete Message   Reply w/Quote
did i read somewhere that a 250 head from a 77 mav has bigger intakes and ports? did i also read they will bolt right up to my 72 mav that has a 250? should i take the 77 manifold too?

todds' dad(19fordmav72)
another Warsteiner lover. and warsteiner isn't all that expensive!
also.. you can run but you can't hide!

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Posts: 1602
From: Auburn, AL.
Registered: Jan 2000

posted 03-13-2002 10:28 PM     Click Here to See the Profile for cpmaverick   Click Here to Email cpmaverick     Edit/Delete Message   Reply w/Quote
I haven't heard anything about that Scott, sorry

-Charlie Ping
1970 Maverick Grabber
[email protected] with AC and overdrive.

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Posts: 1137
From: Thomaston,CT.
Registered: Jan 2001

posted 03-15-2002 06:15 PM     Click Here to See the Profile for 69maverick   Click Here to Email 69maverick     Edit/Delete Message   Reply w/Quote
If anything Scott you want to find a 1966 200 head from a mustang with adjustable rockers.The combustion chambers are smaller which is what you want. This makes compression.

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Posts: 118
From: Lonsdale, MN, 55046
Registered: Jun 2000

posted 03-25-2002 05:56 PM     Click Here to See the Profile for Fordman75   Click Here to Email Fordman75     Edit/Delete Message   Reply w/Quote
Actually the 75-76 heads have the largest intake log volume. A 78-83 head off a granada or fairmont has a slightly smaller intake log compared to the 75-76. But the 78-83 has hardened exhaust valve seats and larger 1.75" intake valves.

These heads are a direct bolt on swap.

For the compression issue the smaller chambers of the older heads don't make up for the poor breathing of the tiny intake logs. You can accomplish the same with the newer head simply by having them milled. A 78-83 head can safely be milled up to .080".

How would you like a head for your motor with a removable aluminum intake? It is a direct bolt on.

If you want to check out some guys getting some decent power out of the 6's check out the forums at

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