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D2OE-AB Police Interceptor Ported Heads Flow Chart

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Post  supervel45 November 15th 2023, 9:11 am

Intake and Exhaust Ported with Polished Chambers.

They Were Flowed with a 4.480" Bore Also, As a 4.36"-4.44" was Not on Hand. That Padded The #'s a Tad Up.

Nothing to Write Home About but, for Back in The Day They Were Pretty Good, Before all The Affordable Aluminum Heads Came Out.

The New SS Valves are Not Flat on The Bottom. They Likely Add About 3cc's to The Chamber Volume.

^ As For as I Know, They Were Only Cut Once, and That was .010" or Less.

I was Hoping for about 25Cfm More on Both Ports. They Flow Around What a Edelbrock Performer RPM Head Does, Which Flow About Like an Aluminum Pro-Comp Does.

Iron Makes More HP Then Aluminum, If You Have The Octane To Sustain The Compression and Heat, So There's That. Cool

D2OE-AB Police Interceptor Ported Heads Flow Chart 20231193

Hopefully They Run Decent. Flow #'s Are Just Part of The Picture and I Think They Will. The E/T is The Final Judge



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Post  Dave De November 15th 2023, 12:06 pm

I have both D2OE's and Edel 60669. My experience is with a 3800# street car that ran 11.50's with an HFT. 521 cubes
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Post  supervel45 November 15th 2023, 10:32 pm

Dave De wrote:I have both D2OE's and Edel 60669. My experience is with a 3800# street car that ran 11.50's with an HFT. 521 cubes

^ So Which Ones Do You Think, If Either, Ran Best/Better?

Was One(1) or Either Set Ported?

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Post  manofmerc November 16th 2023, 7:27 am

Really Richard not bad at all .Just a comparison my AFRs flowed 319@.400and 356@.600 hopefully you will have some compression and that will give you some bottom end .Good luck Doug afro

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Post  dfree383 November 16th 2023, 8:03 am

I’m assuming you just blended everything, those numbers aren’t great for a full port job.

I’ve gotten Eddy well over 360 and iron CJ’s over the same with minimal work.
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Post  dfree383 November 16th 2023, 8:07 am

Hears what the heads ended up flowing. As you can see a quality performance valve job is worth its weight in gold, I have not touched the intake ports except for the valve job. The valve job that was on these appeared to have only 2 angles and a sharp ridge, but the portwork itself looked rather nice. Lesson here is you get what you pay for in a valve job cost of the valve job $225

it should also be noted the intake valves on the befor did not have a backcut and the after numbers java a light backcut Nd that is also contributing to the excelent intake flows.

intake before valve job / after valve job.

.100 75 / 75
.200 143 / 169
.300 221 / 260
.400 293 / 319
.500 325 / 360
.600 349 / 384
.650 356 / 388
.700 358 / 391

exhaust before, after number are affected by a big ridge that need to be blended out, I'll post numbers after I get after them as the after numbers with the ridge where about the same as before. I expect improvements into the low 200's after I finish blending them.

.100 55
.200 119
.300 167
.400 186
.500 186
.600 188
.700 190
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Post  supervel45 November 16th 2023, 9:43 am

dfree383 wrote:I’m assuming you just blended everything, those numbers aren’t great for a full port job.

I’ve gotten Eddy well over 360 and iron CJ’s over the same with minimal work.

I got Them Ported, Dave, for 400, Did Not Even Know They were Worked Over From The Pictures (Carbon, Ect. Covered The Port and Polish Work).

I got The SS Valves from Paul. They are Very Nice.

I could have gone 2.25"/1.76" but, Skipped That.

I paid my Machinist for the Valve Job, New Guides, a New Seat(Had Dropped a Valve when I got Them) and to Surface them, and Magnaflux, of Course.

Those are Some Nice Number on Yours.

If I step Up, I will Likely go D0OE CJ's or Aluminum and Let These Ride for Tamer Street Play Toys.

Might Throw Them on my 429 at Some Point, Down the Road.


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Post  Dave De November 16th 2023, 9:48 am

supervel45 wrote:
Dave De wrote:I have both D2OE's and Edel 60669. My experience is with a 3800# street car that ran 11.50's with an HFT. 521 cubes

^ So Which Ones Do You Think, If Either, Ran Best/Better?

Was One(1) or Either Set Ported?

Neither set was ported. Street car performance was similar but you can get another 1/2 point of compression with aluminum. Those numbers on Dave's heads are stellar.

Stan Weiss's chart shows one set of ported D2OE's for comparison. If you've never been there take a look.

http://users.erols.com/srweiss/tablehdc.htm
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Post  rmcomprandy November 16th 2023, 12:00 pm

Blake ported a pair of D2OE heads which were very good.

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Post  Mark Miller November 17th 2023, 12:53 am

Dave De wrote:
supervel45 wrote:
Dave De wrote:I have both D2OE's and Edel 60669. My experience is with a 3800# street car that ran 11.50's with an HFT. 521 cubes

^ So Which Ones Do You Think, If Either, Ran Best/Better?

Was One(1) or Either Set Ported?

Neither set was ported. Street car performance was similar but you can get another 1/2 point of compression with aluminum. Those numbers on Dave's heads are stellar.

Stan Weiss's chart shows one set of ported D2OE's for comparison. If you've never been there take a look.

http://users.erols.com/srweiss/tablehdc.htm

Thanks for that link lots of Flow Numbers in it for all kinds of different Cylinder Heads!!I've seen it before on YB but it was nice looking at all those flow numbers again!!

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Post  manofmerc November 17th 2023, 4:58 am

For your heavy truck these will work just fine How big will the camshaft be? Doug

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Post  supervel45 November 17th 2023, 9:42 am

manofmerc wrote:For your heavy truck these will work just fine How big will the camshaft be? Doug

I Have not made a final decision on that yet Doug.

I planed to run my Lunati HFT 230/.556"/109.

It would go good with the 2,800 Stall and the 3.54 gears and 31" Tires, in my opinion.

I picked up that Ford OEM Regrind HFT 246/.588"/112 also and Have the CompCams 294B8 SFT.

^That 246 Might Squeak my on this combo but, is a little big. It would probably work good with the Nitrous though, with the 112 LSA. I picked it up just to have for latter.

Not going to Run the 294B8 on This one for sure, and am Leaning to the Lunati 230 for Now.

I have a Couple of other Cams (Ones MIA CompExtreme 4X4 226/234/.540ish/.560ish/111 Suspect ) and a 268H10 That I am going to skip on. The Extreme 4X4 Would be a good fit though. The guy in Texas that regrinds the Ford Cores, has one almost just like it (CompCam 4x4) for 100 and just a few more bucks by the way. Cool

I Think I may do a Stroker on my D9 with some H-Beams and Compression Next, and go from there.

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Post  69F100 November 18th 2023, 10:37 am

The comp 284x 4x4 cam I ran in my Ranger when I 1st built it did great I had dove c heads with factory 460 pistons. With a 3000 stall and c6 it did great ran 10.88 in the 1/4 at 3450.
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Post  supervel45 November 18th 2023, 5:49 pm

69F100 wrote:The comp 284x 4x4 cam I ran in my Ranger when I 1st built it did great I had dove c heads with factory 460 pistons. With a 3000 stall and c6 it did great ran 10.88 in the 1/4 at 3450.

Man. That's Excellent! Cool king

Was The 4X4Camshaft the Same Grind as I mentioned before, Just double checking?

PS:^ Edit I see You Said 284 4X4 Extreme. That one is Pretty Healthy.

I bought, the one I lost or maybe sold from another member here.

He had it in a Pulling/Driver Truck with a 545. He said that Combo was Almost Too Powerful on the Street.

If I could Score Eight (Cool 1.8 ratio Roller Rockers the 230/.556"/109 Lunati would be a Dual Pattern, and About what I would Like to Try, with This Deal.  Arrow

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Post  supervel45 November 18th 2023, 10:08 pm

69F100 wrote:The comp 284x 4x4 cam I ran in my Ranger when I 1st built it did great I had dove c heads with factory 460 pistons. With a 3000 stall and c6 it did great ran 10.88 in the 1/4 at 3450.

Did you Deck the Block or Shave The Heads Much, What was Your Compression Ratio at?

I Take it, It was The Below Camshaft?

https://www.compcams.com/xtreme-energy-240-246-hydraulic-flat-cam-for-ford-429-460.html

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Post  69F100 November 19th 2023, 12:17 am

supervel45 wrote:
69F100 wrote:The comp 284x 4x4 cam I ran in my Ranger when I 1st built it did great I had dove c heads with factory 460 pistons. With a 3000 stall and c6 it did great ran 10.88 in the 1/4 at 3450.

Did you Deck the Block or Shave The Heads Much, What was Your Compression Ratio at?

I Take it, It was The Below Camshaft?

https://www.compcams.com/xtreme-energy-240-246-hydraulic-flat-cam-for-ford-429-460.html

Same cam you have no deck work stock bottom end as come from Ford d9 block home ported dove  heads and Ford Motorsports g429 intake Holley 850dp compression around 10.1
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