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Author
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Topic: Looking for "ACTUAL" 351c 4v Flow Numbers
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f100cleveland
Gearhead Posts: 505
From: St. James, MN
Registered: Sep 2004
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posted 12-08-2004 01:24 AM
 
I'm wondering what the 351c 4v heads actually flow? Stock untouched, bowl blended, or however they were ported. By reading on the net, I get anywhere from 260-320 cfm on the intake the 160-220 cfm on the exhaust. What have you guys actually measured them at? I don't want any of the magazine article ones cuz they are very biased. ------------------
1982 Ford F100 2wd Shortbox. Powered by a 357 Cleveland w/ closed chamber 4v's. Full Roller c-6 trans and 4.86 geared Detroit Locker equipped 9" rear. 1982 F100 351c 4v 1977 F150 460 Burnout Truck [This message has been edited by f100cleveland (edited 12-08-2004).]
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Mpcoluv
Gearhead Posts: 1421
From: Charlotte NC usa
Registered: Apr 2001
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posted 12-08-2004 06:42 AM
I have posted the numbers here in the past, but my computer has crashed and I no longer have the files.
A bone stock open chamber 4V with a Milodon megaflow intake valve flows around 285cfm @ .650 lift with 28" of pressure drop on a superflow 600.look here for my results
https://mustangsandmore.com/ubb/Forum12/HTML/003064.html [This message has been edited by Mpcoluv (edited 12-08-2004).]
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Rustang
Gearhead Posts: 880
From: Clarion PA
Registered: Nov 2000
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posted 12-08-2004 07:08 AM
I have flow results for bone stock 4V close chambered heads, going from memory, I know they were max'd at 260 on the intake and 165 on the exhaust. I think that was at .600 lift. My ported heads (which I recently sold  ) flow-benched at 320 @.700(with port "stuffers" and [email protected](measured 200 @.700 too)------------------
'68 mustang 351 clevor- 10.92@124
'67 Stang, 351W -11.18@118
'69 351C Torino-14.90@100
'78 Pickup 351W-15.56@88
'79 Pickup 460 ET=??
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kid vishus
Gearhead Posts: 7251
From: middle of NC
Registered: Oct 2000
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posted 12-08-2004 07:27 AM
I have had 2 sets of my 4v heads flowed, and bothed flowed right around 300 cfm on the intakes with the bowls cleaned up a little. On the exhuast with just a bowl cleanup, I got 185; more port work I got 208 cfm; and fully ported I got 228 cfm all at .600 lift. My current heads flow 360 on the intake, and 249 on the exhuast; both at .700 (but they have had a lot of work done to them.)
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allenman
Journeyman Posts: 18
From: Allen, TX, USA
Registered: Oct 2003
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posted 12-09-2004 11:37 PM
Check out my numbers
http://flowmotion.home.comcast.net/
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Hans olsson
Gearhead Posts: 936
From: Sweden
Registered: Apr 2000
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posted 12-11-2004 01:35 PM
This is what our heads flow,
unported with a good three angle valve job and Manley steel valves.
Casting number D1AE-GA.0.100 82/44
0.200 161/65
0.300 232/92
0.400 271/145
0.500 294/176 Hans ------------------
- VIN 1F05M139343
- 71 Mach 1 Ram-Air
- 351C 4V 285 HP
- F-G/Stock Aut
- Stockers are way cool!
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