[ChevelleFan70]

Had a pair of heads flowed.. I bought them used a while ago and am finally using them on a 400 small block.

thoughts on the flow numbers? 4.06" bore, 28"

LIFT / INT (cyl1/cyl3) / EX (cyl1/cyl3)

.200	120 / 122	107 / 104
.300	175 / 177	140 / 135
.400	221 / 221	167 / 163
.500	249 / 250	186 / 179
.600	258 / 250	196 / 189
.700	261 / 254	202 / 195

-Dave

 

[400sbc]

They look decent. What brand and size heads are they?

They flow similar to my old pre-eliminator afr 195s that I bought way back around 1998

Here is a link to the flow testing on them posted under my old username

Old AFR 195 heads, flow data before and after work

I bought these AFR 195's with 68cc chambers back in 1998 from AFR. The heads had CNC chambers but were not the fully CNC ported version. I had about 2,000 miles on this set of heads. The work done to them was a new valve job, springs, seals and minor porting work. The valve guide bosses were...

www.chevelles.com

 

[ChevelleFan70]

They look decent. What brand and size heads are they?

They flow similar to my old pre-eliminator afr 195s that I bought way back around 1998

Here is a link to the flow testing on them posted under my old username

Old AFR 195 heads, flow data before and after work

I bought these AFR 195's with 68cc chambers back in 1998 from AFR. The heads had CNC chambers but were not the fully CNC ported version. I had about 2,000 miles on this set of heads. The work done to them was a new valve job, springs, seals and minor porting work. The valve guide bosses were...

www.chevelles.com

They're 200cc heads. I'm gonna leave them anonymous, just have them evaluated based on the numbers.

Thanks for the link, that was some good stuff, very relevant. Since that was 11 years ago, how did it perform? 406, 10.1 cr, 234/242 .574/.595 Hyd Roller, AFR heads (old or not!) -- that should've been a runner.

-Dave

 

[400sbc]

They're 200cc heads. I'm gonna leave them anonymous, just have them evaluated based on the numbers.

Thanks for the link, that was some good stuff, very relevant. Since that was 11 years ago, how did it perform? 406, 10.1 cr, 234/242 .574/.595 Hyd Roller, AFR heads (old or not!) -- that should've been a runner.

-Dave

I ended having money problems and ended up selling my camaro without the motor. I have not put it together yet, I have all the engine parts. I am starting to get back into the car hobby.

 

[Ericnova72]

Had a pair of heads flowed.. I bought them used a while ago and am finally using them on a 400 small block.

thoughts on the flow numbers? 4.06" bore, 28"

LIFT / INT (cyl1/cyl3) / EX (cyl1/cyl3)

.200	120 / 122	107 / 104
.300	175 / 177	140 / 135
.400	221 / 221	167 / 163
.500	249 / 250	186 / 179
.600	258 / 250	196 / 189
.700	261 / 254	202 / 195

-Dave

About middle of the road average for an aftermarket 200cc intake port.
AFR's new as-cast head called the Enforcer 195cc (imported casting, also sold under a bunch of other vendor names white boxed...ProHeader, EnginePro, Assault/KMJ, Skip White NKB, etc)has nearly identical numbers, as does the Dart Pro-1 Platinum 200cc and ProMaxx Maxx 190cc.
Your low and midlift numbers are a bit lacking compared to the mentioned name brand heads, but .400"-up lifts pretty much match.

 

[Geo71]

What size valves you have? Yours should run good,

My cathedral port 706 heads were 200cc runners with 1.89 intake valve. Come stock on 5.3’s they flow 220’s at 600...108 in 1/4. About 6200 they would give up....totally wrong cam.

on the 383 ran the RPM heads....2.02 valves, 185 runners I think...also good to about 6200 ran 114 in 1/4. We ported them alittle they started around 240cfm, probably close to yours now. Bunch of missmatched stuff...

Have a set of Profilers from Eric W with 213 runners and 2.10 intakes. Specd for a 414 and should be good for 6800...flow [email protected] Sad thing is the stock LS3 heads I have now flow as much and were way cheaper.

 

[swampy 6x6]

HI
Afr 195 eliminator street Wieand 7530 230--236HR 10.5 cr 490-495 hp peak hp at 6000rpm done by 6300rpm
Dart Iron 215 with vic jnr 242/248 HR 10.5 cr 520--- 525hp peak 6200-6300 done by 6500
AFR 195 eliminator street version ,small pinch point for street throttle response but flow decent no`s . 540 hp vic jnr 248/254SR 11.3 cr
For all out try Brodix or Afr 215 220 [6500 all day every day ] 11.3 Cr 248 252 SR Holley strip manifold 550--580 hp
For max effort afr brodix 227 and up [7000rpm easy] 12to1 CR 260SR 640hp holley strip manifold

valve size /inlet manifold / cyl head /cam and compression all must work together.

 

[WHT/73]

My gotta be 15+ yr old AFR 195 comps were on 2 engines in my car and performed very very well on both.
They are still on my (well my sons now) 10.5:1 406 except with SR springs that were put on when they went on the 406
10yrs ago.
I think they were around high 200's/300 (advertised) back then.
The times and video in my sig are with them and the 406 on 91 octane. One and only time it went as it doesn't have a cage....yet! With the new mill, I have no choice.

 

[jeff swisher]

Not bad but 200cc runner I would expect a bit more.
Here are numbers for the Edelbrock #5089 head dated on the box 10/03/2018.

So as advertised by Edelbrock. 1020 flow bench. I had these flowed 4-1-2019 on the SF600. The first set of numbers are from Edelbrock.
The other 2 sets are the SF600 bench.
Intake ..Exhaust................. SF600 Stock In' .......Ex' ........ Blended ported IN'.........EX
.100" 63....... 51............................58.15........55.27.......................58.30.......44.00.
.200" 125.....99...........................121.5...........100.48..................123.00.....93.41.
.300" 182...131...........................178.2............135.02.................179.68.....136.9.
.400" 225....153............................222.15.........161.67.................226.9.......171.18.
.500" 248.....163...........................250.66..........171.18................256.01.....187.03.
.600" 249......168..........................255.42..........175.93.......550"...261.36....196.54.
.700"....NONE stated..................... 254.23...650" 179.10 ..............264.33.....198.12
.800"......NONE...............................................................................................199.71


I did raise the exhaust port and I did NOT touch the valve job and I did not touch the chambers at all.
I opened the exhaust throat and hard seat a little. It is only .015" larger than stock.
To make it .88% of valve diameter and Intake was already .89%.

They sounded much better on the flow bench after porting as most heads do.
This is at 28" also.

Here are some numbers on the same bench for my Blended then valve job and ported more 906 vortec heads.
Bowl blend CFM IN &EX........valve job and more porting.
200"...... 112/67....................112/82
.300"......175/109...................176/127
.350".......................................198/?
.400".......215/142...................217/160
.450".......230/?........................233/?
.500" ......244/168...................248/174
.550".........................................???/ 183
.600".........................................???/190

1.94-1.50 stock gm valves.
No more gains after 500" lift on those intake runners.


With a little porting your heads may wake up some.

 

[cstraub]

Based on the flow numbers you have a set of heads that can potentially make 500HP. That's good power for any SBC.

 

[blue_69_malibu]

HI
Afr 195 eliminator street Wieand 7530 230--236HR 10.5 cr 490-495 hp peak hp at 6000rpm done by 6300rpm
Dart Iron 215 with vic jnr 242/248 HR 10.5 cr 520--- 525hp peak 6200-6300 done by 6500
AFR 195 eliminator street version ,small pinch point for street throttle response but flow decent no`s . 540 hp vic jnr 248/254SR 11.3 cr
For all out try Brodix or Afr 215 220 [6500 all day every day ] 11.3 Cr 248 252 SR Holley strip manifold 550--580 hp
For max effort afr brodix 227 and up [7000rpm easy] 12to1 CR 260SR 640hp holley strip manifold

valve size /inlet manifold / cyl head /cam and compression all must work together.

If you don't mind me asking, how big is the motor in your first description? 383, 406, 350, etc.?
Also, how hard is it to get these parts where you live....or do you just pay through the nose on shipping?

 

[swampy 6x6]

HI
Blue
first motor 396 long stroke 4 inch bore, Wes Miglets Corvette forum 490-495hp 195 str head
227 afr head TrikHq 406 640hp
Dart head 406 Darts own promotion 520-525hp
These combos are the same yet differ just enough to give different engine personalities

 

[ChevelleFan70]

Thanks for the responses. The heads are Edelbrock E-Tec 200 heads, (2.02/1.60, 64cc), that I've had in my basement for many years, after getting them on craigslist for $600/pair. I see they are like $750/each now. I know there are better heads out there, but It's a case of I already owned them, and I already have a collection of Vortec style intakes to match.

Like Jeff's experience, my flow numbers are just slightly short of the advertised numbers listed on Jeg's for these. The builder said the low-lift numbers should improve with a valve job and agreed with Mr. Straub's assessment that they should support 500hp.

It should be a fun combo... more to come!

-Dave

 

[VORTECPRO]

They're 200cc heads. I'm gonna leave them anonymous, just have them evaluated based on the numbers.

Thanks for the link, that was some good stuff, very relevant. Since that was 11 years ago, how did it perform? 406, 10.1 cr, 234/242 .574/.595 Hyd Roller, AFR heads (old or not!) -- that should've been a runner.

-Dave

The .300 number remind me of china.

 

[ChevelleFan70]

The .300 number remind me of china.

Not sure what you mean here?

-Dave

 

[Ericnova72]

Not sure what you mean here?

-Dave

I think he is saying for a head in the 200cc group that the flow numbers at low lift, i.e. .200" and .300" lift are rather on the low side, like we see with the as-cast import head castings.

 

[VORTECPRO]

Not sure what you mean here?

-Dave

I lot of china heads flow about 175 @ .300 lift, the heads you have worked over flow about 193 @ .300 lift.

 

[68Chevele]

I lot of china heads flow about 175 @ .300 lift, the heads you have worked over flow about 193 @ .300 lift.

I have 3 friends that run the china heads. 2 of them had their heads bought bare, put in good parts and run pretty good. The 3rd guy ran the out of the box ones and are not even close in performance to my 170cc Vortec heads at the track this year, he cannot understand why the bigger heads don't work.

 

[ChevelleFan70]

I lot of china heads flow about 175 @ .300 lift, the heads you have worked over flow about 193 @ .300 lift.

I'm not sure these are new enough to be China-cast heads, they were purchased used in 2014. But I'm hoping your friend Mr. Parsons in Dayton, OH can make them work pretty well. They're in his capable hands -- that's where my flow numbers came from. Numbers were as-delivered to him, before any work performed. I asked Bruce to treat them as bare-castings and do whatever he felt was needed. I'll post updated numbers if/when I get them.

-Dave

 

[VORTECPRO]

I'm not sure these are new enough to be China-cast heads, they were purchased used in 2014. But I'm hoping your friend Mr. Parsons in Dayton, OH can make them work pretty well. They're in his capable hands -- that's where my flow numbers came from. Numbers were as-delivered to him, before any work performed. I asked Bruce to treat them as bare-castings and do whatever he felt was needed. I'll post updated numbers if/when I get them.

-Dave

Parsons & Meyer?