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Discussion Starter #1
has anyone had any luck with these heads? im building a 406 that will be run with some spray every now and again but i saw some pro filer heads at a swap meet and the quality looked awsome just wondering if anyone is running these heads
 

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i don't run them myself, but i know people who have said it's a great bang for your buck deal. i'm definitely considering getting some for my next motor.
 

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Discussion Starter #5
thanks for the info guys these what im gonna plan on buying unless something goes wrong with my budget. its going to be a 406 with h beam rods, proobably 12/13:1 pistons and hopefully a domintator, im thinkin on going with the 2.055 or 2.08 valves wat do u think?
 

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Butch
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Here is what mine flow

Flowed @ 28" on a 4.070" bore fixture, 2.055/1.600 valves. Gasket matched and bowl ported as they come from Pro-Filer.

ACFM
Lift No. 1 No. 2
-------- ------- -------
0.2000 143.0 96.2
0.3000 204.3 150.1
0.4000 249.7 178.0
0.5000 284.2 198.8
0.6000 299.6 211.0
0.7000 299.6 218.1
0.8000 301.9 221.3
0.9000 301.9 222.9
1.0000 299.6 222.9
-------- ------- -------
Average: 264.9 191.0

We did do back cut valves and I sent in a few different valves for Darin to play with and he came up with,,,
Intake Valve
12° x 3/8"
45° x .065"
30° x .080"
Pro Flo valve

The exhaust did great with the 18 to 22 degree tulip valves.
 

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thanks for the info guys these what im gonna plan on buying unless something goes wrong with my budget. its going to be a 406 with h beam rods, proobably 12/13:1 pistons and hopefully a domintator, im thinkin on going with the 2.055 or 2.08 valves wat do u think?
I asked Chad just this week specifically about valve sizes for these heads in relation to bore. I was curious if they could be had with a smaller 2.02 valve for a 4 inch bore motor....or would shrouding be a non issue with the bigger valve with the smaller bore.

He said the 195 and 210 were actually designed around a 2.02 valve initially, and the head could be ordered with a 2.02 if somebody wanted. He also went on to say that the chambers in them are a little wider than typical and he personally runs the big 2.08 valve in everything. I didnt have him expound on that but I took it to mean that the wide chamber helps the ports flow nice with the big valves even into a small bore. And especially if its a larger 400 variety bore....he would like to see the bigger valve.

At 4.155 inches with potentially 13:1 compression and a dominator....it sounds like the sort of build where Chad would probably want to put you into a 2.08, but id probably see what he thinks.
 

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Those are really nice heads but i would go with the 2.10 intake for anything over 360+ci. JMO
 
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