Wayquick4u

I was looking at the brodix track 1 heads for my 383, but the canfields are selling for $1000 even and look like they almost flow with afr 190's. This is an awesome deal i think, any drawbacks to these heads?

Canfield Flow #'s are:
.400 247/175
.500 258/190
.600 257/200

Compared to AFR 190's
.400 244/188
.500 262/202
.600 261/211

Thats REALLY comparable, a slight porting of the exhaust side of the canfields seems like they would wake them up for about 250 bucks less than the afr's. Any opinions?

MSD tech

Wayquick4u,

I have to say that they are awesome. My 195's out of the box flowed slightly higher then the numbers your showing but that could be the flow bench. On my Nova with no other changes, I picked up over 3/4 of a second in the quarter over a stock set of ported 2.02 or camel Hump heads. The motor wanted a bunch more fuel but after a few times to the track I did get it dialed in. I like the quality and the non inflated claims so much I bought a set for the big block I am now putting in my car. Just my two cents.

Joe

Guido

Are those canfield numbers FROM canfield? Ive heard of people buying heads from them and having them flowed and they fell WAY far of the numbers advertised. I had my AFR 190's flowed and they were right on the dot as AFR advertised.

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-86 IROC
Vortech Supercharged 406
-=ICON Motorsports=-

Dan87IROC-Z

I am pretty un-familiar with the Canfield heads, but I do know that the AFR heads are superior quality. Now, I'm not saying the Canfields are crap, they could be great quality. But I do think that with that sort of a deal, they sound like great heads.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End

Current Mods: LT4 Hot Cam, Comp Cams 1.52:1 Roller Rocker Arms, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)

7.5" 10 Bolt with 3.42s soon to come!

BadSS

The flow numbers listed are from Flow to Go,,, off AFR’s site. The Canfields tested in that article had 2.02 / 1.60 valves. The heads for $1000 from Jegs have 2.055 / 1.6 valves and flow 4 cfm better at .200 and 2 cfm better at .600 than posted,,, according to Canfield’s site. I’ve built a few engines with the Canfields and AFR heads. If you want to save a few bucks,, the 2.055/1.60 Canfields perform near identical to the 195 AFR “race ready” heads out-of-box VS out-of-box. If you have to spend $1300,,,, buy the $1000 Canfields and get a reputable and knowledgeable engine builder to apply $300 to bowl/seat/chamber work on the Canfields and they’ll flat run circles around the $1300 AFR head.

88IROCs

If you're going to have them machined anyways, why would you pay $1000 for the assembled heads? Canfield will sell you bare castings(bronze guides and valve seats installed) starting at $745!

Judging by the numbers in the "Flow To Go" article, I'd leave the intake side alone and spend all the money polishing the exhaust ports(hell, $60 buys you a home porting kit and you can polish the exhaust ports yourself). Out-of-the-box versus out-of-the-box, the AFR's will beat the Canfield because of a better exhaust port, and it doen't take much to tilt that in the Canfield's favour.

Just my opinion.

BadSS

uhh,, let me say again,, I've built the same engine combination using the out of the box Canfields (65 cc 2.055 / 1.60),, and 195 AFR heads (68 cc 2.02 / 1.60). The results were near identical. There is more to it than flow alone, although very important. However if you have to get the numbers similar,, like you said,, a home porting kit with no more than blending in the seats should get you close. Or,, you could leave then alone and add a few more degrees exhaust duration to the cam specs (opposed to the AFRs),,, and presto.

BlueBottleJunky

UPS just delivered my Canfield 197's today. I ordered them w/ CNC combustion chambers for an extra $50. That's worth 10-12 cfm alone (the flow #s listed are on non-CNCed chambers). Came in a touch under $1100 ready to bolt on including shipping thru Competition Products in Wisconsin...real good people to deal with. I've researched the ins-and-outs of cylinder heads, and the Canfields seem to best fit my needs. These heads and the AFRs should perform nearly identical in a 350-450 HP application. In higher horse applications, it is my understanding that the Canfields perform better. Let's face it, the Canfields are basically a race head (no EGR provisions). Works for me, since my Mini-Ram has no EGR provisions either. Alas, my next motor is going to be a high compression stroker motor or a 406....therefore, the choice was pretty simple on my part. I'll post my ET and MPH as soon as I get my heads/cam/intake/converter installed.

BlueBottleJunky

Guido...not trying to step on your toes...BUT, shouldn't your Mini-Rammed, AFR Headed, Vorteched 355 run better than 12.17@113? Hell, my BONE STOCK L98 IROC ran 12.42@110...with a 150 shot of NOS and 3.73s. Maybe you're the one that should have your heads re-flowed to see if the numbers are accurate.

89ProchargedROC

ok well, first of all here jackass. yeah it probably could have run better but you know what he took out a ring and put a hole in dent in the cylinder wall at cyberbrawl. me and him were trying to work the bugs out of it and found out that he had the wrong ignition wires. so we unhooked the msd (no boost retard) and he heard popping at about 1000 feet and LET OFF and and ran 12.17.
It that car had some more time.....would have been an easy 11.20 car.
Maybe you should learn about what your talking about before you start to criticise people

BlueBottleJunky

Listen here Coby...If I wanted any lip from you punk, I'd pull your pants down. My post to Guido was pretty simple....I just thought his car should have ran better. The explanation you gave solves that, but coming in here calling someone a jackass that you've never met seems pretty childish. I did notice that you're still a student..pretty evident by your actions. Get a clue, grow the f*uck up.

89ProchargedROC

well i apologize for calling you a jackass, but Guido is a friend and didn't appreciate you attacking his motor and comparing it to your bone stocker.....that was a little out of line w/o knowing anything about the motor either.

Grim Reaper

Actually BlueBottleJunky, I read your comment to Guido (Curt) as a flame too. Guido is not "advertising" his times in his signature and then you bring this "out of the blue", basically insulting his AFRs.

You should expect a "response" from either Guido or his many friends when you do that. Guido's been here a long time, much longer than his "registration date" suggests because that is only when www.thirdgen.org went to the new format.

People can say what they want against AFRs, but they didn't become the #1 head of choice for nothing.

86TpiTransAm

Wow, the tension around here seems to get pretty stiff around time for the tracks to start opening!! LOL!!

In response to the topic....AFR's are the #1 head of choice as mentioned and the flow numbers and basic AFR package components say a lot!! And yeah, the canfields flow numbers are very comparable to the AFR's but I've heard the overall quality of canfields have no comparison at all to the AFR's!! I've just heard bad things about the quality of canfields!

"To each his own"

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1986 Trans AM
305 TPI
200,000+ miles (speedo/odometer non-funtional! Odometer reads 142,000)
4 Wheel Discs
9 bolt Borg Warner Rear (2.73's....oh joy) :P
Completely Stock
Soon to upgrade to a 350 converted from TPI to Carb, Edelbrock 750CFM Carb, Edelbrock Performer RPM Intake, Headman Shorty Headers, Some sort of ported heads (undecided), XE268 Cam, Moroso HEI ignition kit with external MSD Blaster II Coil and an MSD 6-AL Box!!
Current project: Keeping my 305 running until I get my income tax returns!