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| | |-+ AFR 185 heads (#1388) Vs. TFS TW 185 CNC on a 347
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Author Topic: AFR 185 heads (#1388) Vs. TFS TW 185 CNC on a 347  (Read 30664 times)
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« on: June 18, 2011, 07:33:27 pm »

I'm looking for about 400-420 rear wheel horsepower out of a 347.  Which heads should I buy?  (Going to use a Victor 5.0 intake and a custom cam).
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90 Mercury Grand Marquis
69 Merc
The Ricer King
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« Reply #1 on: June 18, 2011, 07:55:41 pm »

I will have to recommend TW 205cc heads for those power levels and a very healthy camshaft.

1-3/4" x 3" LT headers.  Just to get started.
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Robert's 1969 Mercury Montego (FordStrokers 408W, QFT 850cfm RQ-AN, Super Victor, 2" aluminum open spacer, CamMotion HR .624/.609 251/256 108, 1-3/4" x 3" headers, Broader Performance RmV/B under a C6/4R100 behind a 8"/9" billet 5500 stall, 9" 4.56 Detroit Truetrac, M/T ET radial streets 315/60-15 on 10" rims)

The Merc started here = http://sbftech.com/index.php/topic,27178.0.html

Irwindale Speedway 1/8 mile (1st time at a track!) = 7.647 @ 90.78mph with a crappy 1.878 sixty foot (3850# race weight)

Present day Merc = http://sbftech.com/index.php/topic,34648.0.html


Except that engine building (properly) is a labor intensive industry.  Who do you think does all the measuring and machining?  Little engine shop fairies?  Not to mention assembly, mock up and parts fitting.

At Woody's level you are not just paying for his labor but for his skill set as well.

Thanks FordStrokers 408W, Westminster Performance Transmission (W.P.T.) transmissions, TCS Performance converters, Broader Performance valvebodies and last but not least a BIG thanks (always) to my friends here and abroad in the World!
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« Reply #2 on: June 18, 2011, 08:53:37 pm »

There is a reason the twisted wedge head still gets penalized 50 lbs in nmra  Grin

Go in product reviews section and look for the thread Fordstrokers, that 347 has a set of tfs 185's I did for it.
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331-347 Short Blocks 2099.00 and up
408-418-427 Short Blocks (F4 Roller Blocks Standard) 2399.99 and up
Dart Shorts 4199.00+
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Make sure you get your information from the internet gurus that haven't built SHIT, they did sleep at Holiday Inn last night, and we have a few of those gurus right here on this forum. Smiley
lethal
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« Reply #3 on: June 18, 2011, 09:14:04 pm »

there is nothing wrong with the AFR heads, they are a very nice piece straight out of the box.
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« Reply #4 on: June 18, 2011, 09:45:00 pm »

There is a reason the twisted wedge head still gets penalized 50 lbs in nmra  Grin


there is nothing wrong with the AFR heads, they are a very nice piece straight out of the box.



Is there a weight penalty for AFR heads with NMRA?

Aren't the TW heads penalized because their valves are rotated in such a way to further unshroud them for better flow?
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Robert's 1969 Mercury Montego (FordStrokers 408W, QFT 850cfm RQ-AN, Super Victor, 2" aluminum open spacer, CamMotion HR .624/.609 251/256 108, 1-3/4" x 3" headers, Broader Performance RmV/B under a C6/4R100 behind a 8"/9" billet 5500 stall, 9" 4.56 Detroit Truetrac, M/T ET radial streets 315/60-15 on 10" rims)

The Merc started here = http://sbftech.com/index.php/topic,27178.0.html

Irwindale Speedway 1/8 mile (1st time at a track!) = 7.647 @ 90.78mph with a crappy 1.878 sixty foot (3850# race weight)

Present day Merc = http://sbftech.com/index.php/topic,34648.0.html


Except that engine building (properly) is a labor intensive industry.  Who do you think does all the measuring and machining?  Little engine shop fairies?  Not to mention assembly, mock up and parts fitting.

At Woody's level you are not just paying for his labor but for his skill set as well.

Thanks FordStrokers 408W, Westminster Performance Transmission (W.P.T.) transmissions, TCS Performance converters, Broader Performance valvebodies and last but not least a BIG thanks (always) to my friends here and abroad in the World!
woody
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« Reply #5 on: June 18, 2011, 10:02:44 pm »

There is a reason the twisted wedge head still gets penalized 50 lbs in nmra  Grin


there is nothing wrong with the AFR heads, they are a very nice piece straight out of the box.



Is there a weight penalty for AFR heads with NMRA?

Aren't the TW heads penalized because their valves are rotated in such a way to further unshroud them for better flow?

Twisted Wedge is the only penalized head. Cant knock the AFR but if buying brand new, to me its easy.

1.17l) PERMITTED CYLINDER HEAD LIST, PARTS NUMBER: These are the only permitted cylinder heads and part
numbers for competition in this category. If your cylinder head is not on this list, it is prohibited.
Stock Ford OEM 289/302/5.0 and 4.6L Cylinder Heads. ++
Ford GT-40 and GT-40P Cast Iron Cylinder Heads ++
FRPP GT-40 Aluminum Cylinder Heads, PN# M 6049 X303 & Y303
FRPP/SVO 4.6 2V Cylinder Heads
FRPP/SVO 4.6L 4-Valve Cylinder Head, M 6049 T46
FRPP 3V PN# M-6049-463P and M-6050-463P
Edelbrock Performer & Performer RPM Heads, PN# 60329, 60359, 60279, 60229, 60259, 60269
Trick Flow Twisted Wedge 5.0 (non R) PN# 51400010**
Trick Flow Twisted Wedge 5.0 PN# 51400010-C01 (185cc CNC)**
Trick Flow 2V PN# 51910001-M38 & 51910002-M44 (see section 1.17i)
Brodix ST 5.0 & 5.0R Aluminum Cylinder Heads, PN# ST 5.0 & ST 5.0R
Holley 5.0 Aluminum Cylinder Heads, PN# 300-573, 574, 575, 576, 577, 578, 579
World Products Roush 180 & Windsor Jr, PN# 53030, 23030
Air Flow Research 165, PN# 1398, 1399, 1400, 1402, 1472
Air Flow Research 185, P/N# 1387, 1388, 1389, 1406, 1381, 1383, 1426, 1428
Dart Pro 1 170cc As-Cast Cylinder Heads, PN#13100080, 13111181, 13111182
Canfield 170cc Street #18-350
RHS 180cc (Iron & Aluminum)
** These heads permitted with a 50 lb. weight adder to base weight
++ These cylinder heads permitted a 100 lb. weight deduction from base weight.
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331-347 Short Blocks 2099.00 and up
408-418-427 Short Blocks (F4 Roller Blocks Standard) 2399.99 and up
Dart Shorts 4199.00+
D.I.Y Shortblocks 1799.00

FordStrokers.com

Make sure you get your information from the internet gurus that haven't built SHIT, they did sleep at Holiday Inn last night, and we have a few of those gurus right here on this forum. Smiley
lethal
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« Reply #6 on: June 18, 2011, 10:43:12 pm »

could it be because there not a stock style head that they carry a weight penalty.
has anyone actually done a back to back test between AFR and twisted wedge.
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fogged306
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« Reply #7 on: June 18, 2011, 11:21:38 pm »

They still bolt on like stock and use all the same parts, just different intake location and valve angles. They make more power than an inline head on a stock bore, which is why they're slapped with the weight penalty.
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Trevor

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« Reply #8 on: June 18, 2011, 11:28:07 pm »

could it be because there not a stock style head that they carry a weight penalty.
has anyone actually done a back to back test between AFR and twisted wedge.
Whats not stock about them? The valve angle? They have std height exh ports, standard height intake ports. Back to back tests have been done a million times, and prove a bunch of nothing.
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331-347 Short Blocks 2099.00 and up
408-418-427 Short Blocks (F4 Roller Blocks Standard) 2399.99 and up
Dart Shorts 4199.00+
D.I.Y Shortblocks 1799.00

FordStrokers.com

Make sure you get your information from the internet gurus that haven't built SHIT, they did sleep at Holiday Inn last night, and we have a few of those gurus right here on this forum. Smiley
Stephen Johnson
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« Reply #9 on: June 19, 2011, 02:52:56 am »

Its because of the degree of the head as is, and when u get done modifying it......... Whistling
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lethal
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« Reply #10 on: June 19, 2011, 03:06:59 am »

exacly the valve angle. does that class of racing allow canted valve heads?
what does prove a bunch of nothing mean?
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Blue Oval
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« Reply #11 on: June 19, 2011, 03:50:00 am »

 I can't speak for the TW heads as I haven't had anything to do with them. They get good reviews though.
 Woody's recommendation would have been good enough for me had I not already bought my junk.

 My 347 is making an honest 400 rwhp as is backed up by the 1/4 mile times. I'm running OOB AFR 185
 #1388 heads milled .020". 3200 car with driver.
 See combo in the signature.
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347 windsor, AFR 185,Vic Jr,Comp Cams Hyd Roller cam,780 Prosystems carb ,1 5/8" extractors, 4500 stall,4.11:1 Tru Trac. Chassis dyno 370 hp  Best 1/4 mile 11.21 sec at 122.83 mph
Youtube 1 min in..
http://www.youtube.com/watch?v=lBI75-l9CQQ
In car video ...
http://s222.photobucket.com/albums/dd159/texasbluesdownunder/?action=view&current=3rdrun21stmay2011.mp4
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« Reply #12 on: June 19, 2011, 04:50:04 am »

Looks like I'm getting the TFS TW 185 CNCs.
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« Reply #13 on: June 19, 2011, 10:57:39 am »

exacly the valve angle. does that class of racing allow canted valve heads?
what does prove a bunch of nothing mean?
No it does not
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331-347 Short Blocks 2099.00 and up
408-418-427 Short Blocks (F4 Roller Blocks Standard) 2399.99 and up
Dart Shorts 4199.00+
D.I.Y Shortblocks 1799.00

FordStrokers.com

Make sure you get your information from the internet gurus that haven't built SHIT, they did sleep at Holiday Inn last night, and we have a few of those gurus right here on this forum. Smiley
NIKwithoutaC
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« Reply #14 on: June 19, 2011, 11:37:11 am »

Ignore everything else and just look at the advertised flow numbers for the two heads.  AFR flows their heads on a bigger bore and they still flow nearly 25 CFM less at .600" lift than the TW heads.  The port volume numbers are deceiving; the 185 TW is a much bigger head than the AFR 185.  It would be more fair to compare the TW 185 with the AFR 205.

Twisted Wedge FTW!  Grin
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One of those silly big head/small engine cars.  302ci, TEA Twisted Wedge 205s, TFS R intake, 97mm MAF meter, very mild custom cam.
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