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Author
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Topic: Factory 289 heads...
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BAD67FUN
Journeyman Posts: 50
From:
Registered: Feb 2002
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posted 02-28-2002 01:19 PM
  
How efficient can they be? How much can you expect to pay to have them gone thru? Or is it worth saving more money and picking up some aluminum ones?
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Moneymaker
Administrator Posts: 17471
From: Lyons, IL, USA
Registered: May 99
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posted 02-28-2002 01:56 PM
289 heads are just fine with a little work for 90% of the hot street applications.
There is nothing to gain with aftermarket aluminum heads unless you build the rest of the package around them.  ------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
US Class Nationals link
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V8 Thumper
Gearhead Posts: 2692
From: Orange, Ca. United States of America
Registered: Dec 2001
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posted 02-28-2002 01:58 PM
Depends on what you intend to do with them... They have smaller valves than 351W's, but tighter chambers in the 289 heads make more compression. Press-in studs are fine with stock to mild valvesprings, but screw-ins are necessary for big lift, high duration cams requiring front coil springs in the heads  . You could spend $300 to $400 or more (no porting) to 'upgrade' 289 heads. Aluminum heads are $1000+ but are ready to run, with flow rates far superior to cast iron heads, even ported ones (except maybe Alex's MM heads, still don't know how he gets through tech with those things ).
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mvierow
Gearhead Posts: 149
From: Bay Area, Ca
Registered: Apr 2001
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posted 02-28-2002 05:15 PM
Check out fordmuscle.com. I recall an article from them on stock 289 heads. They did a little home porting and had a machine shop do a 3 angle valve job and a few other things to them. Then they flow benched them and compared them to other heads with nice graphs and everything. I think you need to subscribe to get the whole article however.I have a set of 289 heads that have already had the rocker studs removed and tapped that I will be looking at getting rid of fairly soon. They have ARP studs, Manley guideplates, Comp springs, Comp retainers, and Comp 10deg. locks. I was about to dig into them with my die grinder, but I found a decent deal on a set of AFR's, so I never got around to it. They had a single angle valve job around 17,000 miles ago. I don't recall the casting number, but I know they are NOT the high compression heads that everyone searches for. You could always mill the deck if you wanted to. Here's some links
http://www.fordmuscle.com/archives/2000/05/heads/index.shtml http://www.fordmuscle.com/archives/2000/07/homeporting/index.shtml http://www.fordmuscle.com/phpBB/viewtopic.php?topic=209&forum=11 http://www.fordmuscle.com/phpBB/viewtopic.php?topic=181&forum=11 http://www.fordmuscle.com/phpBB/viewtopic.php?topic=184&forum=11
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2bav8
Gearhead Posts: 191
From: Mesa, AZ
Registered: Jun 99
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posted 03-01-2002 02:45 AM
I wonder how much cam a good 289 head can handle. Not like Alex's motor of course, but just a "really good" port job that's down to earth. Maybe .550" valve lift?------------------
2BAV8 Mustang
www.geocities.com/2bav8
[email protected]
1966 Restomod Coupe
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Moneymaker
Administrator Posts: 17471
From: Lyons, IL, USA
Registered: May 99
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posted 03-01-2002 11:44 AM
About .600 lift is as big as I ever used with 289 Crane style round exhaust port heads. Those were state of the art in the 70's. ------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
US Class Nationals link
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