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Thread: Chevy head flow data
          
   
   

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  1. 02-08-2007 01:07 PM #1
    69elko's Avatar
    69elko
    69elko is offline CHR Member
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    Car Year, Make, Model: 1969 El Camino SS396 350HP
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    Man, the new Dart Iron Eagle platinum's have really improved over the older versions! They might actually be worth buying a set now.
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  2. 02-08-2007 03:39 PM #2
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    MadMax
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    Car Year, Make, Model: 1983 Chevy 5,7l G20
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    I'm going to get a beating now:
    Flow isn't everything.
    You have to check the chamber shape, CR, size and shape of the intake runners... I would never get a head only based on the flow-numbers, otherwise everyone would run 882's
    But the chart is very helpful, I like my 492's even better now that I KNOW they're good
    Thanks a lot Tech,
    Max
    Harharhar...
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  3. 02-08-2007 04:53 PM #3
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    69elko
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    True, but I don't think there's any aftermarket head with as bad of a chamber as an 882 or any other smog era head.
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  4. 02-08-2007 06:40 PM #4
    jimmyjeep
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    Car Year, Make, Model: 1997 S-10 357c.i.
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    Whats your best guess on how much flow increase I'll see by having installed the 2.02/1.70's in my 462 heads?
    "oohh...thats gonna leave a mark!"

    1997 s-10, 357 C.I., 350 turbo, speedpro 11:1,Comp Cam custom grind mech. roller, Canfield heads, 1.6 roller rockers, edelbrock tm-1, holley 750sp, Hooker Headers, MSD, 3K B&M stall, 4:11 gears
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  5. 02-08-2007 07:23 PM #5
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    erik erikson
    erik erikson is offline CHR Member
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    Car Year, Make, Model: BLOWN 540 57 CHEVY
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    Quote Originally Posted by MadMax
    I'm going to get a beating now:
    Flow isn't everything.
    You have to check the chamber shape, CR, size and shape of the intake runners... I would never get a head only based on the flow-numbers, otherwise everyone would run 882's
    But the chart is very helpful, I like my 492's even better now that I KNOW they're good
    Thanks a lot Tech,
    Max
    You need to look at flow numbers in the middle,not at .100 or .500 but in the .200 to .400 area depending on you camshaft profile.
    Your valves spend very little time at min. lift or max. lift.
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