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#1 |
Registered Member
Join Date: Nov 2001
Location: Laramie, Wy
Posts: 8
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![]() I have a 306 with flat top pistons and a holley intake. I want to know the heads that will give me the most power.
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#2 |
Registered Member
Join Date: Mar 1999
Location: Sanford NC USA
Posts: 155
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![]() man that topic has no REAL answer its all up to what you want to do with your car and everything else and what mods you have but, anyways.... I hear AFR's are really good I have edelbroks alot of people run Trickflows.. and some run the windsor CAST IRON's depends on budget and ultimate goal with the car! most power like what TOP NUMBER or broadest powerband? see what I mean TFS will make most power i think but broadest powerband will be AFR's I think!!
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88 Hatch 10.60's @ 130 89 Hatch Not as fast but holds its own |
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#3 |
Registered Member
Join Date: May 1999
Posts: 5,246
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![]() TFS can't be beat for powerband. They flow a tick more than the 165's from the flowbench numbers I've seen as well. The 185's are a different story.
Lot's of people like AFR, and lots like the TFS TW heads. I would say they are the class leaders. |
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#4 |
I need 110mph Trap Speed!
Join Date: Feb 1999
Location: So, CA
Posts: 4,315
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![]() Most of the aftermarket heads out there are all good. But they are exactly right.
Skyler
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2001 BMW M3 6spd 12.79@108 RIP ---- 1993 Notch w/ 98 4V 4.6 Fasttt... -1989 Saleen Mustang #406- 12.32@109 -1999 Black Cobra Coupe- JBA Shorties, Bassani Cat-X, Magnaflow 3", Pulleys, 85mm Pro-M, Ported Intake, Soild Rear w/ 4.30s, Tubular Front End, X2C arms, 13lb batt, few others. |
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#5 |
Registered Member
Join Date: Feb 1999
Location: Utica, Michigan
Posts: 2,631
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![]() Yup, all of the aftermarket heads are great. Just below them are the gt-40 variety.
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1988 Mustang GT stock bottom 302, C4 10.9 @ 128 with 8 psi of Novi 1000 boost!----STOLEN 1989 Mustang notchback Warmed up 306 with a Procharger. |
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#6 |
Registered Member
Join Date: Apr 2001
Location: Gallatin, Tn
Posts: 1,326
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![]() Yeah, my vote is in for the TFS TW which are doing quiet well for me, but will be soon upgrading to the AFR 205 for a little taste of the 10's hopefully, it really does depend on what your goals are which was mentioned before. Good Luck!
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#7 |
Registered Member
Join Date: Apr 2000
Location: middleburg, fl, usa
Posts: 1,134
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![]() Canfields are good also but may be a little big for a 302 unless you are going to run a solid roller cam and really spin it high or if you are going to go with more cubic inches. Otherwise I would stay with the tfs or afr165.
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James Cox RHC Member #44 nochevy@hotmail.com 1991 Mustang LX Dart iron eagle block, 4340 28oz 347 crank, 4340 h-beam rods, probe ultra light pistons canfield heads “race ported by Brent Frazier”, solid roller cam and lifters “custom grind”, kooks 1 7/8" race headers, and much more. Engine built by Brent Frazier. |
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#8 |
Registered Member
Join Date: Nov 2001
Location: SanAntonio, Tx
Posts: 734
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![]() Yea canfields, irons are good for n/a setups from what i seen, but tf's are awesome too.
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Police package 5spd 90 Lx, Stock original motor, 3.27grs, BM fan, fms 10.5 clutch, D&D quadrant, and adjuster, ADS chip, 180 stat, mac cai, mac h-pipe, mac subframe connectors, ASP crank pulley, ripper shifter, 26x10.5 M/T sport pros welds. 246 hp according to analyzer ![]() Race weight: 3,120 E.t-13.57 with 26x10.50's e.t. streets. 1.88 60' mph- 99.92 mph |
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#9 |
The Photoshop Guru
Join Date: Feb 2001
Location: Mecca, Indiana
Posts: 1,419
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![]() I talked to a guy that has used both the Trick Flow's and the AFR's. He said the AFR's looked like they were a lot better quality.
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Project: 1988 Coupe - EFI 5.8L Twin Turbo with Victor intake, Canfield heads, F303 cam, March aluminum underdrive pulleys, TKO (or T56 if funds permit), PBR twin piston calipers and 13" rotors up front, 94 Cobra rear calipers and 12" rotors on the rear, 3.73's, Griggs K-member, tubular front control arms, torque arm and panhard bar, polished 99 Cobra wheels. "The GR-40 kit installation is now complete, and the humble Fox-chassis car will now out-corner and out-stop a ZR-1 or a Viper, and support massive horsepower additions with perfect balance." Griggs Racing ICQ# 42269241 |
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#10 |
Registered Member
Join Date: May 1999
Location: Georgia
Posts: 3,866
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![]() AFR's are of a lot better quality, and also a lot more money.
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#11 |
Registered Member
Join Date: May 2001
Location: usa
Posts: 10
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![]() Rember you get what you pay for.
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#12 |
Registered Member
Join Date: May 1999
Posts: 5,246
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![]() Yes, you do get what you paid for.
You can get a Mustang GT that will perform like a Mitsubishi 3000GT VR4. For the extra money you get AWD, 4 wheel steering, an extra 1000lbs, etc, etc. Lot's of people are putting good mileage on the TFS TW heads with no problems. Why spend the extra money if you don't need to? I've seen sets of the TFS TW aluminum heads complete for as little as $900/pair. That's hella cheap for aluminum heads. Regardless, as it's been pointed out, the best heads overall, and the best bang for the buck will be determined by the rest of the combo. |
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#13 |
Registered Member
Join Date: Apr 2000
Location: middleburg, fl, usa
Posts: 1,134
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![]() A guy at the track the other day with his just rebuilt 306 with trickflow heads and a vic jr intake and a 750 dp carb ran an untuned 12.33 @ 111.?? mph and he did not even launch hard on that run. The second run he managed to pull the front wheels about a foot and a half of the ground on launch but missed 3rd gear. He did not get anymore good runs. My point is that with tfs heads on a 306 and a little tuning he should be able to run high 11's all motor. Not too bad!
Kind of makes me sick, I have spent a lot more money to go slower and I should be much faster than him. I think I want to sell my car and start all over. ![]()
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James Cox RHC Member #44 nochevy@hotmail.com 1991 Mustang LX Dart iron eagle block, 4340 28oz 347 crank, 4340 h-beam rods, probe ultra light pistons canfield heads “race ported by Brent Frazier”, solid roller cam and lifters “custom grind”, kooks 1 7/8" race headers, and much more. Engine built by Brent Frazier. |
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#14 |
Registered Member
Join Date: Sep 2000
Location: Minnesota
Posts: 125
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![]() Do a search between the AFR's and the trick flows. The prices are very close when everything is assembled.
Robert
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1990 Mustang GT 5.0 1966 Mustang 200 six 2001 Ford F-150 5.4 |
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#15 |
Registered Member
Join Date: May 2001
Location: usa
Posts: 10
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![]() What's your best bang for your buck? The Trick Flows & AFR are good heads. I'm looking @ trick flows because I can get them for around $985 o-ring about $100 less than Summit. The trick flows are 2.02 1.60 don’t know the flow # but I bet its close to the ARF. If I had the money I wouldn’t buy either I would go with Canfields heads
DARRYL |
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#16 |
Registered Member
Join Date: May 1999
Posts: 5,246
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![]() MM&FF did some flow bench testing that had the AFR's outflowing TFS's pretty good.
The flowbench numbers that I have show the TFS's outflowing the AFR's easily on intake, and just a little on the exhuast side. I'm talking AFR 165's. |
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#17 |
Registered Member
Join Date: Aug 2000
Location: Plymouth, MI
Posts: 254
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![]() One reason TFS heads are cheaper than AFR or Canfield is that the bolt holes on the TFS heads are not helicoiled.
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#18 |
The Photoshop Guru
Join Date: Feb 2001
Location: Mecca, Indiana
Posts: 1,419
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![]() Adding 16 helicoils to a set of heads isn't going to account for $300 worth of material and labor. The only real cost that would add is the cost of the heli-coils and the time to screw them in since the holes are tapped either way you go. That's maybe $50 at most?
I've heard the reason is because the people selling TFS heads buy them bare and stick cheap @ss valves in them. If I were planning on buying TFS heads I'd buy them bare and have a local machine shop install some good valves in them along with a 3 angle valve job and correct springs for my setup. I'd go with Canfields or AFR's if you're planning on buying them assembled.
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Project: 1988 Coupe - EFI 5.8L Twin Turbo with Victor intake, Canfield heads, F303 cam, March aluminum underdrive pulleys, TKO (or T56 if funds permit), PBR twin piston calipers and 13" rotors up front, 94 Cobra rear calipers and 12" rotors on the rear, 3.73's, Griggs K-member, tubular front control arms, torque arm and panhard bar, polished 99 Cobra wheels. "The GR-40 kit installation is now complete, and the humble Fox-chassis car will now out-corner and out-stop a ZR-1 or a Viper, and support massive horsepower additions with perfect balance." Griggs Racing ICQ# 42269241 |
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#19 | |
RICE taste like Chicken
Join Date: Jun 2000
Location: Edmond, OK
Posts: 687
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![]() Quote:
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Dustin 89 Saleen GT Sport Supercharged 306 Started her up 6/8/03 Old Motor Supercharged 347 516 rwhp 553 rwtq 11.249@126.83 1997 Honda CBR 1100XX Super Blackbird 162 hp |
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#20 |
Registered Member
Join Date: May 1999
Posts: 5,246
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![]() Yes, yes, everybody has heard the TFS heads are junk. This is sooo fricken old.
Rumors fly around all the time about them. Cheap components, not helicoiled, valve guide wear. The truth, from everything that has been posted on here by the people that actually run the heads is they are a solid quality head, that perform awesome at a killer price. It may be true about the AFR's being higher quality, but there is a point when quality becomes an overkill. |
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