Big Hp looking at 1200hp And up, on conv head 460 based block

'65 T-BOLT wrote:Happy Flow Bench Inc. on the brand X?

No I doubt it, they probably do flow that............. Just another screwing the ford guys are getting.

The best flowing conventional head we have other than the boss head is a P-51 Kasse.

Is there another conventional head for a Chevy, that could get to that potential?

Something we (I) are not aware of ?

Maybe the mystery engine head they used in Nascar................

Well, looks like your best bet would be the P51's, unless you have the money and time to go with Boss 9's. You could get over a 1000 probably with either of them at 640 cubes, but it would be easier (and more $) with the hemi heads.

Please let us know about those chebby heads, just to cure the curiosity.

Yup, I think it would be interesting to hear what conventional chevy head flows thoes numbers.

John Kyle at Apd gets over 500 cfm out of the brodix Head-hunter head With ti valves etc.

Guys, remember it is not always about flow numbers. Where does it make power, What is the average power, How much power on the shift, how tight can I run the convertor, what are the flow numbers at 6 and 700.

Years ago we picked up my a-heads 20 numbers at peak and all I seen was a little mph and a loss in 60, 330.

Coug I understand what you are saying but Lawes and Charlie are consistently in the upper 470 and low 480's with stainless 2.350 stainless valve. My a-heads are in the 490's and a few bust 500 but not without 30 hrs of work after normal port job and combustion chamber work.

All I am trying to say is do not underestimate the A-head and its ability to produce. I beleive we are just beginning to see what the p-51 can make happen. It is going to take several guys that are capable of tuning an engine and can give good feedback to actually know what these heads can produce.

Oakley Motorsports wrote:John Kyle at Apd gets over 500 cfm out of the brodix Head-hunter head With ti valves etc.

Is this head considered a conventional head ?

Just curious as what parameters it calls for to qualify to be a conventional head?

IDT-572 wrote:

Oakley Motorsports wrote:John Kyle at Apd gets over 500 cfm out of the brodix Head-hunter head With ti valves etc.

Is this head considered a conventional head ?

Just curious as what parameters it calls for to qualify to be a conventional head?

If it will bolt on a Factory Chevy Block, has Big Valves and Flows more than everybody Else it's Conventional according to the rules the Chevy guys make up !!!

dfree383 wrote:

IDT-572 wrote:

Oakley Motorsports wrote:John Kyle at Apd gets over 500 cfm out of the brodix Head-hunter head With ti valves etc.

Is this head considered a conventional head ?

Just curious as what parameters it calls for to qualify to be a conventional head?

If it will bolt on a Factory Chevy Block, has Big Valves and Flows more than everybody Else it's Conventional according to the rules the Chevy guys make up !!!

I would seriously like to know............. I hear this all the time. Conventional and 500 cfm just seem not to go together in the same sentence.

I am sure it's different from one sanctioning body to another, but I would like to hear one description.

Blake,

Where you in the room when Darrin Morgan was talking about Texas Pro Stock? Making over 1200 hp with "Conventional" BBC heads? I believe he mentioned doing it with 450ish cfm......

http://www.460ford.com/forum/showthread.php?t=133325 <--- very good reading for Spencer on the P51 heads on a 562" engine.. I hope KY doesn't mind me posting that.

http://www.brodix.com/heads/headhunter.html <--- those are the heads from the Brodix site. They call them "conventional"...and I have no idea what that means in regards in how they compare to a stock-type head. They sure flow some air!

The BRODIX Head Hunter series represents the cutting edge of conventional big block technology. These heads are 100% CNC ported and utilize features such as, oval-shaped intake ports that flow an amazing 465 cfm and newly designed exhaust ports that flow 308 cfm with only a 1.850 exhaust valve. Standard features include an extra thick deck, high valve cover rail, and the best castings in the business.

copied from brodix site

understand we are talking about the guy(John Kyle) who was in on the design of these heads finish porting work. Not out of the box from Brodix.

Nice heads, Seem to Flow about Like A460's?

That head looks to be a stock port entry height also, exhaust looks raised but it might not be, hard to tell.,

Looks like us Ford guys just got our ass's handed to us.....................
We don't have anything close to that in a stock configuration wedge.

Hey this is Spencer again.Just to answer a few more questions.First thing head hunters and big dukes are not allowed in class,and Deck height limit to 10.320 same as ford big block. Also i know what your saying about flow #'s i just brought that up to tell you guys what im up against.I know that a 500in pro stock motor doesnt require as much flow in the head if u have it camed/2 carbs/sheet metal intake/and 9500 rpm shift range.But if your going to have a 640inch motor with usable rpm and the right coverter Single carb cast manifold and auto trans(PG or 3speed)most will have to flow around 500cfm intake to make over 1200hp Both my 440 SB's have high shift ranges the C3 Yates headed Flow 390cfm intake at 800lift and shift 8800 to 9100 and you cant let it drop below 7600 or the motor wont recover back into HP range.The GV2 motor(440CFM Head) Has to shift at 9500 and you dont won,t it dropping below 8100 or its out of its window also. Thanks Again Spencer.

Spencer Elton wrote:Hey this is Spencer again.Just to answer a few more questions.First thing head hunters and big dukes are not allowed in class,and Deck height limit to 10.320 same as ford big block. Also i know what your saying about flow #'s i just brought that up to tell you guys what im up against.I know that a 500in pro stock motor doesnt require as much flow in the head if u have it camed/2 carbs/sheet metal intake/and 9500 rpm shift range.But if your going to have a 640inch motor with usable rpm and the right coverter Single carb cast manifold and auto trans(PG or 3speed)most will have to flow around 500cfm intake to make over 1200hp Both my 440 SB's have high shift ranges the C3 Yates headed Flow 390cfm intake at 800lift and shift 8800 to 9100 and you cant let it drop below 7600 or the motor wont recover back into HP range.The GV2 motor(440CFM Head) Has to shift at 9500 and you dont won,t it dropping below 8100 or its out of its window also. Thanks Again Spencer.

Find out for us what Chevy heads are legal and let us know.

Me again. I made a mistake on last post Head Hunters are alowed.Big Duke Big Chief Are Not Alowed,The head hunters are were there flowing big #s 460cfms,----- My little Mustang weighs around 2870#'s with me in it after scaled and weight added,it has 1.24 60ft leaving at 4000rpms on Tbrake,Killing 15degrees for 1.5 Seconds into the run,You have to do this to keep from flying the front end on these stock suspension cars.(wheele bars Not allowed this car has drug the bumper at the 330's when all the timing comes back in).Then when you do this Its hard to make a SB recover back unto its HP Window.

Also i would like to add the fellow racer Posting under 429boss has give me some real good info on the Hemi head set up looks like thats probley the way to go in trying to make serious BBF power.Until the BBC guys find a way to outlaw that set up.Thanks Spencer

Thats Almost as big as 460.

Nice ride, Spencer! Rich (Boss429) should be able to help you out really well with the hemi combo. You'll get some of them chebbie boys whining about running a hemi, but OH WELL! The broader torque curves of the BB's will help you with your narrow power windows of the SB.

Keep us updated.

Thanks .

hi spencer

lot going on next few days, i have 2 engines i have to have ready by fri,and one to dyno monday, but i will be spending time on a few things for you later tonight,and tomorrow


-rich

Man I would love to be there to see one of Hemi's on the Dyno .I wonder how long it would take to drive up there.

just sent you other info before this one, give me a call tomorrow, having problems with my pms


-rich

Spencer Elton wrote:Man I would love to be there to see one of Hemi's on the Dyno .I wonder how long it would take to drive up there.

this one is a ex514 iron head, 1 carb, the hemi is ready but have to do this one first

Got The Info Probley get back with you Monday Thanks Spencer