i didnt read the whole article but i could see a little gain from some good hand porting. personally i would think there is only so much they can do with a casting and cnc porting.

 

What it sounds like Niel is that they just did a better CNC job than what they had. It's not a "re-designed" head per say like a new casting, just basically a maxed out head, what they should have done to begin with.

 

I hear thier QA is pretty bad. Has that changed?

 

Well I've got the old AFR 227's and they flowed like a motherfucka right out the box with the CNC competition package..... Don't know about QA but my heads look sick as ****..... flow was about par with their advertised #'s.... Believe the results were 308@700 and 235@700..... way better than LT1 castings could even dream about....

 

It look like the ports are different , thats why I was referring to a new set of headers. And us Y Bodies have it covered too, as we race too. Stahl headers can hook us up as well as a few others. My 1 /3/4 Headers SS headers arent bad too.

 

IMO a 227cc head should flow at least 330's min. out of the box esp. w/ the comp port job.. that what kept me away from the afr's.. I'm glad they came out w/ a new port hopefully it's as good as it look's on paper.. then my buddy dave can kick some *** w/ em as well..

 

Your kidding right??

There isnt a standard height 23' head that even comes close regardless of port volume. Most production 23' race heads (210-240 cc) are lucky to clear 300 CFM. We are not talking about raised runner 23' heads of course, which have an easier time getting into the 320-330 CFM range with a good program (and their far and few between as well). And I'm not talking about a one off piece you buy for a few grand and then invest another few grand into additional porting work steeper seat angles and special valves etc....I'm talking about an out of the box race head you buy from a typical manufacturer or dealer.

You need to come back to reality on this stuff....comments like the one above can be very misleading. If you can purchase a non-raised runner 23' SBC head that can touch 320 at any cc you should be all over it....and at less than 230 cc's you really have a homerun on your hands and good luck finding one. Hell....the LS Gen III stuff has a much better chamber, 15' valve angle and alot of other things going for it and many of those heads regardless of size have trouble nailing 320+ CFM's. On an accurately calibrated flowbench 320 CFM is a serious number for a conventional layout street head.

Tony M.

 

Nice post Tony... Let's all take the blue pill!!

 

True reality...would'nt that be the red pill?

I have just had my set of AFR LT4 210 heads ported, and while the peak numbers weren't sky high, the low and mid lift figures were astounding. I had untouched 195 "race readies" before and they worked fine. Hope the 210's add a lot to the new 383.

 

well from what I remember reading it's not all about the flow #s either

 

Yes, velocity is esspecially important.

 

Now that this has become the new slogan Ill start home porting heads and selling them on Ebay. It may not be all about the numbers but it plays a part. Just like everyone says dyno numbers mean nothing

 

okay Just make sure you make zig zag patterns on the ports too

 

With LME porting & race valve job setup my 210s now flow 319 and I'm putting 500 to the ground n/a, ditched your AFR springs and valves for Ferrera valves & high-end springs to hold up to my CAM/spring specs, no complaints here. Planning on AFR RR215 heads in the near future and having those maxed out, but just getting bare castings this go around.

 

Then I would have to charge extra But on the real, These heads have really peaked my intrest. May be the next step to getting to the next level.

 

We just finished our first dyno test of the new street 195 ($1400 retail)....you will see the results in an upcoming Chevy Mag.

383 CID "cheap" shortblock (cast crank, hypereutectic pistons, etc.)
10.8 CR (91 octane all day long)
1.75 headers
240/246 Flat tappet hydraulic cam (this feature is all about the budget BTW)
Vic Jr that I lightly cleaned the plenum and port matched
750 Demon Carb

How about 520 HP at 6200 RPM....481 TQ @ 5200 and the engine was still making 490 HP @ 7000 RPM. We were extremely pleased....I drove to the dyno facility with the heads thinking if I leave with 500 HP that would be pretty awesome all things considered.

That head flows 280 CFM @ .500 lift with stong low and midlift flow and a killer exhaust port as well (its actually stronger on the exhaust side than we will probably advertise....that head went around 220 @ .500 lift!).

Huge numbers for a reasonably priced street head (100% CNC ported) that competes in price with alot of our competitors "as cast" stuff.

ALOT more good stuff on the way but this is one of the first tests that points to the fact our new Eliminator heads are going to perform as well if not better than we had hoped.

Thanks Guys...

Tony

PS....Way back when someone SWORE to me the blue pill was the "reality check" and the red pill was the Matrix (where every 23' race head flows well over 300 CFM....LOL). Few people have picked up on the fact it was actually the other way around....LOL (and now I'm committed to my blue pill ad campaign.... ) Way to stay alert Built LT1....but lets keep it between us! In a years time your only the 3rd person to have brought it to my attention.

 

If this is the real deal Ill be putting a kidney on Ebay soon.

 

This makes me feel way better

 

Are you questioning our integrity or the results?

I could fax you the dyno gragh if you like....

Our best pull of the day was 523 with a slightly larger carb....an 825 or 850 Demon....the guys at Westech weren't sure which one it was. I noticed it was still pulling an inch and a half of vacuum at WOT and thought a larger carb would help. If we had more time I'm convinced we could have seen 525-530 HP by optimizing the larger carb set-up.

Tony M.

 

I am not questioning your/AFRs integrity.

But from those out here in the world the stuff in the magazines seem to be a bit unreal (either more than expected or even less that what I would expect-I can point you directly to an article in a current publication that makes me ).

What are we to think?

It could be people dont know how to put together the combo, or they didnt have the hours to spend in the dyno cell to get it right, or what ever....you never know what is going on.

But as you would agree, just b/c it is printed doesnt mean it is golden.