I wanted to quit derailing Brad's post .

Serious question. If we are limited to a standard port configuration how much power is a Victor head worth? +/-? Are the raised exhaust ports worth anything when paired with the standard intake port size? I think it is probably 25-35 hp at best and I'm being generous. All thoughts are welcome. J.Rob

Not sure how you would propose testing that. If you run the heads OOTB then that is one test but if you allow someone to port the heads then you end up with a completely different answer.

Even though this is the race forum I'd wager that most of the guys on here run heads out of the box. If you include the TF240 heads in the OOTB category then I think they are a good contender. I suppose Indy might have a good standard port head too although most of their stuff is MW size with a necked down face to make it standard port.

The other issue with your question is that it all depends on the size of the engine, the cam and the compression ratio. I'm pretty sure a guy could build two different engines to get two different results.

The sr Indy head in standard ports were generally dogs in most applications I saw over the years.

Exactly.

Maybe Edelbrock revised/ruined the Victors recipie (just thinking out loud here) to the smaller bowls because (human nature being what it is) maybe a high percentage of people (i.e., their 'real world' customers, not our tech saavy Moparts guys) bought big port Victors expecting "big" gains immediately bolted them onto their stock 8:1 440 shortblocks and maybe stuck in a 509 cam and now their cars would immediately have trouble falling out of a tree!!

By finishing them small they would still thoeretically work on a 440 at least comparable to/slightly (25hp) better than an OOTB RPM but then at least have the meat/potential to be ported? This way they could claim victory in the marketplace and still have the CNC market for the Real Race crowd?

What was the driving force behind the downward revision? Cost? or was it the "average Chevy mentality...bolt-on and go" customer?

There’s really only one way to know.

If it was only 25-35hp.......that’s still 25-35hp.

Dwayne, yeah, I think that's the point I was trying to make....It doesn't matter to their mass market approach if fully ported they may be 60-70HP better, if Edelbrock can show there are a clear (if only) 25 hp better, then (marketing wise) it's still a "Victory".

To be clear, I’m talking about a set of ported Std port Victors(350cfm, like what are on BradH’s 452) vs ported RPM’s(something like a MCH CNC job), or the ootb TF240’s.
I feel on a motor in the 650-700hp+ range the Victors would be the best of the three.

I can’t see the point of running the Victors ootb with the way the bowls are cast now

The arrival of the TF heads on the scene has certainly made a big impact on the std port head market.

What kind of cfm do porters get out of the std port heads? I know that’s not the end all be all but it’s a pretty good indicator

I guess I'm a troll for trying to initiate a discussion?

I'm guessing you are a Victor cylinder head owner venting some frustration over your choice. J.Rob

Your trying to say that Victor heads are very bad. This is old news. Everyone already knows this who cares. Next.

I'd like to see a standard port Victor compared to the Trick Flow 240. They both have the smaller chamber design. I think the RPM heads would be at a disadvantage in port and chamber design to the other heads?

I think in OOB, the Trick Flow heads have the advantage of being CNC ported, and flow more than the OOB Victor heads, but I don't know how different the port velocities are?

Not sure with ported heads?

They are trying to have a discussion.. if you
dont want to be in it.. dont post

In ootb form, IMO the TF240 is the clear choice for builds where a std port opening is preferred and you’re looking for over like 550hp.

As has been discussed before, the primary determining factor for that at this point is the quality, flow..........and price.

If the heads all cost the same, the choice wouldn’t be as clear.........but they don’t, and it’s pretty difficult to approach the potential of the TF head for equivalent $$$.

The highest I’ve seen from a “true” std port head is around 350cfm........and that’s been with the Victor/Pro Comp heads.

I haven’t done one in a long time, but I’ve had std port SR’s flowing in the 340’s.

Actually, now that I think about it, I had some nicely ported std port EZ’s in the shop, done by Hughes, that had the transition in the roof filled in, and those went about 350 as well.

Sometimes I wonder why I even bother. You are right, but in this case I felt compelled to be a little crass. Sometimes people make comments without having all of the facts. When they do I think they should be called out.

I have dyno and flow tests with standard port, ported Victors, and OOTB TF240s on 440 engines, both with dual plane intakes. One a small solid roller and the other with a larger solid flat tappet. I will try to get the information organized and to you RAMM.

What facts am I missing? J.Rob

Thankyou Jim, I am seriously interested, as I have never had eyes on a set of TF240's yet. J.Rob