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PostPosted: Tue Dec 30, 2008 12:12 pm 
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Location: Hays, Kansas
This is out of the box! Notice the opening and exhaust exit are squared up. Notice the nice short turn! Also notice the quality and finish of this USA cast head. Notice the 3/8 corner radii.

I'll have flow data later. This port is designed for a 2.125 valve.. Thanks Guys.. PM or email for pricing!!

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PostPosted: Tue Dec 30, 2008 5:42 pm 
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Joined: Fri Nov 16, 2007 10:14 pm
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Location: Iowa
PM sent, also, would my current jessel's work on these heads? i ordered them with the offset for my current 227 cnc'd units i have now.

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PostPosted: Thu Jan 08, 2009 5:40 pm 
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Location: Hays, Kansas
Flow data. Flows some air for a 210cc as cast head. Valve job with some clean up only.. Intake only.

0.200 148.0
0.300 217.0
0.400 260.7
0.450 290.4
0.500 300.5
0.550 301.8
0.600 302.2
0.650 302.6
0.700 303.3
0.750 300.4
0.800 300.4

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Last edited by Chad Speier on Wed Nov 11, 2009 3:22 pm, edited 1 time in total.

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PostPosted: Thu Jan 08, 2009 7:13 pm 
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Location: Iowa
That's pretty good for a small as cast cylinder head 8)

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PostPosted: Thu Jan 08, 2009 8:42 pm 
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Location: Waterloo, IA
Wow, that really has some potential looking at the numbers. Darin is on top of his game, that's for sure.

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PostPosted: Thu Jan 08, 2009 9:06 pm 
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Location: Hays, Kansas
Darin told me he has a new 210cc and 230cc ports that are not done yet, but those will be CNC ports only. He has redone the 220 port and will get that port in some heads soon.

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PostPosted: Thu Jan 08, 2009 9:18 pm 
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Location: Iowa
Are the 230's going to be able to use stndard 23* pistons and valvetrain, or do they use offseet valve spacing and offset rockers like most of the bigger port 23* stuff?

This ought to be very interesting to see what he comes up with for the 230 runners, i'm very curious.

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PostPosted: Thu Jan 08, 2009 9:26 pm 
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IHI wrote:
Are the 230's going to be able to use stndard 23* pistons and valvetrain, or do they use offseet valve spacing and offset rockers like most of the bigger port 23* stuff?

This ought to be very interesting to see what he comes up with for the 230 runners, i'm very curious.


I didn't ask him to be honest. I talked with Mike Green the other day and I'm going to tell you guys, Pro-Filer gets it. Their product line will be head of the class, just give it some time.

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PostPosted: Fri Jan 09, 2009 12:33 pm 
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Location: OH
The 220cc and the 230cc will take standard pistions and valve train.

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PostPosted: Fri Jan 09, 2009 12:35 pm 
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I'll pretend I didn't read that post, lol.... :)

(staring at an engine with 309 cfm Canfields on top of stadard 23* pistons... and Jesel shafts... lol)

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PostPosted: Fri Jan 09, 2009 2:16 pm 
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Michael Green wrote:
The 220cc and the 230cc will take standard pistions and valve train.


Are the valves shifted or not? (60/40)

AFR also says they take standard pistons and valve train but the intake valve intrudes into the exhaust valve pocket and will cause problems if your clearances are tight.


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