This is topic FLOW numbers in forum Tech Talk at Northern California Ford Owners  .


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Posted by stoauto (Member # 2803) on :
 
does anyone have the flow numbers on the pro-action heads for a small ford? i think there the 195s or something like that. THANKS.
 

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Posted by Chosen1 (Member # 1906) on :
 
The 200cc runner heads are rated: INTAKE: 267cfm@.400, 302cfm@.500 lift, and 310cfm@.600 on the intake side. EXHAUST: 184cfm@.400, 193cfm@500, and 199cfm@.600

I was looking into these heads a while back and consulted MANY professional opinions. Gromm, Bayshore, Baca's, and they all basically told me that these heads are not equivalent to their SBC heads in quality nor performance. Gromm actually tested these heads and they do not flow what they are advertised, and they need a lot of cleanup. I was told "They try to get these flow numbers so high to the point where other manufacturing processes are compromised. Just get AFR's!!!" -Flow numbers arent everything!

[ October 15, 2003, 12:26 PM: Message edited by: Chosen1 ]
 

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Posted by stoauto (Member # 2803) on :
 
hey thanks man!! i really appreciate it, so AFR it is. i'm sorry to hear that the pro-actions AREN'T as great as they advertise. what a shame, oh well. hey THANKS AGAIN for the info!
 

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Posted by st5150 (Member # 51) on :
 
I dunno, the numbers don't look too too bad to me. Expecially for a boosted application.
 

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Posted by Chosen1 (Member # 1906) on :
 

quote:

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Originally posted by st5150:
I dunno, the numbers don't look too too bad to me. Expecially for a boosted application.

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They would be good if they were accurate. I was told they weren't.
 

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Posted by st5150 (Member # 51) on :
 
Well most manufactures pump up their flow numbers by ~10 cfm. That's to be expected. Shoot, I'm still waiting for the remaining 12 HP from my "15HP increase" K&N filter
 

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Posted by 2stangs69-91 (Member # 1951) on :
 
I have had friends flow there AFR heads and not hit the advertised numbers. GO figure
 

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Posted by st5150 (Member # 51) on :
 
I believe AaronC's AFR165's peaked at ~234cfm on the intake.
 

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Posted by yellow67stang (Member # 903) on :
 
I have heard and have seen completely different things than what you have heard regarding these heads. IMHO the mentioned shops that you talked to are not very good or have very little R&D time with these heads.

On the flow bench (which is only a tool) when worked on they sound real good. They also put out great average numbers! Plus, the head has WAY more meat for porting and moving things around.

AFR heads will always be a good street head but that's it! The Pro action stuff can be a great standard valve angle head on the street and on the track. Like the high ports. It is a great head for Comp Eliminator! The iron version that is.

Eric

[ October 15, 2003, 06:36 PM: Message edited by: yellow67stang ]
 

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