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Author Topic:   falcon six- 200 or 250?
richard bohm
Gearhead

Posts: 373
From: tucson,az-luray,va
Registered: May 2001

posted 08-26-2001 11:21 PM     Click Here to See the Profile for richard bohm   Click Here to Email richard bohm     Edit/Delete Message   Reply w/Quote
i have been convinced to kee pthe six in my 64 falcon. now should i build a 200 or a 250 ci six.

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SteveLaRiviere
Administrator

Posts: 37258
From: Saco, Maine
Registered: May 99

posted 08-31-2001 09:59 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Wasn't the 250 the heavy duty version with 7 main bearings? They say that one is good to 7000.

------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC
Keep your driveway ALL Ford!!!

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cpmaverick
Gearhead

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

posted 09-02-2001 11:04 AM     Click Here to See the Profile for cpmaverick   Click Here to Email cpmaverick     Edit/Delete Message   Reply w/Quote
Yeah, the 250 has more cubes and is more durable. Its a better starting point, although I've heard that the 200 heads flow better.

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66 coupe
Gearhead

Posts: 231
From: Orlando, FL
Registered: Nov 99

posted 09-04-2001 12:38 PM     Click Here to See the Profile for 66 coupe   Click Here to Email 66 coupe     Edit/Delete Message   Reply w/Quote
The post-'66 200 also has seven mains.

The biggest problem with putting a 250 in a Falcon/Comet/Mustang is the height of the engine. The block is almost 2" taller than the 200 and makes airfilter hood clearance an issue.

The 200 and 250 often came with the same head castings so there's really not a difference in capability. The big rule of thumb is later-is-better. Post-'69 heads have bigger ports and logs. Post-'75 heads have bigger intake valves (1.75" vs 1.68"). Post-78 castings have induction hardened exhaust seats for unleaded fuel.

Check the Ford Six Forums for a 200-250 swap FAQ.

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Jack Collins
'66 coupe
250 Crossflow / T-5
Click here to visit the Mustang Six website!and
The Ford Six Performance Forums

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cpmaverick
Gearhead

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

posted 09-04-2001 03:21 PM     Click Here to See the Profile for cpmaverick   Click Here to Email cpmaverick     Edit/Delete Message   Reply w/Quote
Thanks for the info Jack!

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