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Author Topic:   Windsor head gasket question
lawless
Gearhead

Posts: 274
From: Richmond, VA
Registered: Aug 2000

posted 05-17-2001 12:30 PM     Click Here to See the Profile for lawless   Click Here to Email lawless     Edit/Delete Message   Reply w/Quote
I'm putting on a set of D0OE 351W heads on my 289 this weekend. Which head gasket should I use (351 or 289)?

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64 Fairlane Hard top
289 4-speed

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n2oMike
Gearhead

Posts: 1511
From: Spencer, WV
Registered: Jan 2001

posted 05-17-2001 12:58 PM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
If you're just swapping stock 351W heads for stock 289 heads, then you're probably going to go backwards. Sure, the 351W heads have slightly larger valves and intake ports, but the compression ratio is going to take a SERIOUS dive. (60.4cc vs. 54.5cc combutsion chamber). Gaining 6cc on a 289 would drop a 9.5 engine to 8.8

None of the regular factory Ford heads flow that well... Some are slightly better than others, but all are pretty crappy in stock form. I wouldn't bother unless the switch was being made to an aftermarket and/or ported head.

If you do decide to go through with the switch, you'll have to keep an eye on the steam holes. Steam holes are the small 1/8" or so holes in the deck. They are directly over the bore towards the lifter valley on a 289, but not on a 351W, or later 302's. These match up with the oblong passage on the 289 head, but will not match up to the 351.

You'll need to drill a hole in the deck of the 351 head to match up to the steam passage in the 289 block. 289 head gaskets will be fine to use after this modification.

My advice, save the time and money for a set of aftermarket heads like ported World Jr's with good hardware or stock AFR 165's. The AFR heads have a elongated steam hole to work with any of the production blocks.

My $0.02... been there, been doing that for 18 years now.

Good Luck!

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Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/motorcitymustang/cmml/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367

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steve'66
Gearhead

Posts: 6352
From: Sonoma,CA,USA
Registered: Mar 2000

posted 05-17-2001 01:11 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Mike's right on as usuall! 289 gaskets and drill the 351w heads. That's what I did years ago, plus we milled .040" from the heads too to bring the 351 heads' chamber size down. Don't ask how they worked, We were never really happy with that 289, that's why we built the 351W with Edelbrock's performer rpm heads.

SteveW

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lawless
Gearhead

Posts: 274
From: Richmond, VA
Registered: Aug 2000

posted 05-17-2001 05:03 PM     Click Here to See the Profile for lawless   Click Here to Email lawless     Edit/Delete Message   Reply w/Quote
Thanks for the info guys. The heads I am putting on have been thoroughly ported and will be replacing an unported set of D0OE's that were on the car when I bought it. The short block was built with the correct pistons to give me 9.5:1 with 64cc heads. The "new" set of heads have been milled so I should get a little more compression out of them too. I wish I could just stuff a big stroked windsor in this car, but I would have to cut the shock towers on my car (64 fairlane) to get it to fit. Maybe next year...

Chris

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64 Fairlane Hard top
289 4-speed

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