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Author
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Topic: M2 Brodix Track 1's or AFR 205cc or AFR 225's
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texada
Journeyman Posts: 13
From: texas
Registered: Jul 2003
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posted 08-13-2003 03:34 PM
   
Which heads should I get? This will be going on a 408w stroker, Victor Intake, a nice Solid Roller Camshaft.This will be a weekend warrior and see some track time. I am shooting for 625+ Horsepower.
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N266fords
Gearhead Posts: 557
From: Spokane ,WA USA
Registered: Apr 2003
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posted 08-13-2003 04:51 PM
Why not the victor jr heads thats what i am using on my 393 w i am building..bruce
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bluestreek
Gearhead Posts: 1289
From: Athens,GA
Registered: Jul 2001
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posted 08-14-2003 01:10 AM
A 9 second street motor?? 
I hope it's going in a car that handles like a Cobra. Anything over 500 HP on the street is insane! ------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank and girdle, 5.4 H-beams, Forged slugs, TFS alum. heads, ported Stealth 8020 intake, Xtreme 274 Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi.
11.86 @ 116 mph (7.62 @ 93 mph)full street trim!
DanH
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blown 351
Journeyman Posts: 64
From: Seattle, Wa. 98258
Registered: Dec 2001
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posted 08-14-2003 09:52 AM
I like the Vic Jrs also for the 351 stroker based engines. My 393 has them.
500 HP on the street is just about right, maybe a little low depending upon the weight of the vehicle.
Currently 544HP at the rear wheels-68 fastback-just about right
10.88 @131 MPH-street trim
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texada
Journeyman Posts: 13
From: texas
Registered: Jul 2003
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posted 08-14-2003 10:33 AM
Sorry, I didn't memtion the Vic Jr. Heads. I really don't know alot about them?
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Mpcoluv
Gearhead Posts: 945
From: Charlotte NC usa
Registered: Apr 2001
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posted 08-14-2003 06:05 PM
AFR seems to make the best out of the box "Windosr style" heads out there.
Get the 205cc or 225 cc heads.
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n2oMike
Gearhead Posts: 1547
From: Spencer, WV
Registered: Jan 2001
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posted 08-16-2003 01:04 AM
The AFR 225's have their exhaust ports raised 3/8" which might cause problems with headers. The AFR 205's aren't raised that much... maybe 1/8" or something.Go to www.airflowresearch.com and check em' both out. I would definitely go with AFR... probably the 205's. If you are building a REALLY wild engine, the 225's might get the nod. both flow like crazy, and will leave your rear tires feeling abused.  Definitely go big. You're feeding 'big block' cubic inches through a small block head. It's hard to go too big. You've seen the ports in big block heads, right? They don't seem to have a hard time making good low-end and midrange power.  Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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powrshftr
Journeyman Posts: 25
From: Sarnia,Ontario,Canada
Registered: Apr 2003
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posted 08-16-2003 10:50 PM
Keith Craft Racing Engines recently built a VERY similar motor to yours,used Brodix heads(M2's)and a fairly big roller cam,and it made approx. 650hp & 600lb/ft! YIKES! The Brodix would have my vote in this case,purely due to a case of 'a proven combination'.You can just copy his engine and get KILLER results!your wife might want to take out a BIG insurance policy on you right before you take it for the first "test drive",though!LOL!------------------
DRIVE IT LIKE YOU STOLE IT!!!!!!!!!!!
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Buster
Gearhead Posts: 780
From: Orlando
Registered: May 2002
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posted 08-17-2003 10:37 AM
 WoW, I didn't know the AFR had that much flow. [This message has been edited by Buster (edited 08-17-2003).]
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texada
Journeyman Posts: 13
From: texas
Registered: Jul 2003
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posted 08-17-2003 04:33 PM
The AFR 205cc and 225cc Heads flow more than the Brodix Heads from what I've seen from the Brodix Flow Sheet. I would guess I should be able to make that kind of power with the AFR as well.
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kid vishus
Gearhead Posts: 4538
From: middle of NC
Registered: Oct 2000
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posted 08-17-2003 04:38 PM
"Out of the box" I'm sure the AFR's flow better than the Brodix heads. I'm sure the Brodix heads Kraft used weren't "out of the box." He is after all, a professional head porter.
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n2oMike
Gearhead Posts: 1547
From: Spencer, WV
Registered: Jan 2001
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posted 08-17-2003 06:28 PM
There's also more to a head than flow numbers... and AFR has proven themselves over and over again to be major horsepower producers. The fact that you can just take them out of the bag and slap then on the engine is their beauty. The CNC port work is FIRST RATE! For the money, there is no way you could pay someone to take a competitor's head and have that level of port work done.On the other side of this 'double edged sword'... Guys like me who used to excel over the rest by using the grinder as their weapon of choice, are losing their advantage to modern CNC equiptment and credit cards. These days a person can pretty much buy his way to whatever amount of horsepower he wants. There are some complete dumbsh*ts out there who are making some big power... but can't really carry on an intellegent conversation about their engine. Time marches on... ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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powrshftr
Journeyman Posts: 25
From: Sarnia,Ontario,Canada
Registered: Apr 2003
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posted 08-17-2003 11:36 PM
The Brodix heads used on the engine in the article had Brodix's M2 port option......whatever that is...LOL!Stock 68cc chamber volume seems pretty big,but was supposedly left as-is.They only flowed:I [email protected]"/E [email protected]" I was surprised that those AFR's went 325/255,those are BIG #'s for a Windsor-style head,especially out of the box!
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CometGT1974
Gearhead Posts: 181
From: Asheville, NC USA
Registered: Jan 2002
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posted 08-18-2003 08:41 AM
I looked on Edelbrocks website, they are now offering an in line valve, 18degree version of the Vic. Jr. w/ a combustion chamber designed by Billy Glidden and CNC ported by Chapman Racing!!! I doesn't get much better then that!!!http://edelbrock.com/automotive/new2003/new_heads.html
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a69Fcode
Journeyman Posts: 12
From: SLC, Utah
Registered: Aug 2003
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posted 08-20-2003 02:29 AM
New guy checking in...On my 351-W I used AFR 185's. I then smoothed and polished the ports. Here is the biggie... AFR has the greatest customer service. After I ordered the heads we changed cams. The result was a heavier spring was needed. AFR reworked the spring seats to handle the larger spring diameters at no charge and quickly too.
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