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06-24-2002, 04:42 PM
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#1
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Registered User
Join Date: May 1999
Location: Raleigh, NC
Posts: 5
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SBC Pro Action cylinder heads? any good?
I have been looking at these, but haven't heard of anyone running them.
Anybody have any input? I am looking at the Alum. 220cc or 235cc intake sizes to go on a 406 SBC.
What do you all think?
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99' NBM T/A, 6 spd., Speedline wheels, Whisper Lid,
Macs, Hooker catback, T1 cam, KVR rotors,
GMS MAF, !FRA, Eibach springs,
!ported TB.
369 rwhp.
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06-26-2002, 03:26 AM
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#2
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Registered User
Join Date: Feb 2002
Location: Houston, TX USA
Posts: 1,109
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very nice castings, ports all seem to be the same, I also like the Dart Pro 1 heads, I have a set of the 230 aluminum I am working on.. probably the best cast aluminum heads I have ever seen out of the box.. (and I have seen a few)
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Texlurch - 68 Camaro (Just a little ol' LT1 with a Hot Cam, I SWEAR 
" a little spray never hurt anyone, spank you very much!"
or the old standby:"I came here to race, not sell real estate. You ain't scared, is ya?"
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Texlurch - 68 Camaro - Twin Turbo, Twin Intercooled LT1
DFI, MSD, Aeromotive, BBK, NX, LT4 Top End, Forged Bottom End
(stock motor + 6psi = 405 RWHP, 513 RWTQ  )
Videos of car
My Home Page
My Projects Page
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06-27-2002, 02:34 PM
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#3
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Registered User
Join Date: Dec 1969
Location: Phila., PA
Posts: 1,157
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They look like a slam-dunk on paper. Real world testing is not showing great results, however. Many have been implying their actual flow isn't what they say it is and power from them is also sub-par.
None of this comes from personal experience, however.
For some opinions from guys who have used them try posting over on nastyz28.com
[This message has been edited by Damon (edited June 27, 2002).]
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1990 454SS pickup. New engine under construction.
Grandma's old 78 Malibu (33K miles!) with a mild roots-blown 383.
"Last remaining QJet tuner on Planet Earth!"
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06-28-2002, 04:17 PM
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#4
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Member
Join Date: Mar 2000
Location: Chicagoland
Posts: 519
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They claim big numbers then Chevy Hi-po tests them and the 882 out flowed them on the exhuast or something crazy like that, AFR 195 is the way I think.
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07-23-2002, 10:58 PM
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#5
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Registered User
Join Date: Jan 2001
Location: Newark, DE
Posts: 936
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I can only vouch for the Dart Pro 1's.
They flow very nicely !!!
I have it matched up to a rather large solid street CompCam.
Heavy...
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1972 Chevelle SS
Forged 383, Dart Pro1 heads, TCI stall.
Rear axle is original pegleg 2:73 for now
Initial T/T = 13.58 @ 104.1 mph w/ 2.27 60ft.
Expecting 12.5's w/ new 12 bolt posi 3:73.
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1972 Chevelle SS heavy clone-- Forged 383, Dart Pro1 heads, 3k stall, 12 bolt, DR's.
2004 stats = 12.2 @ 111 mph, 1.82 60ft
2008 upgrade = 75mm turbo, new fuel system, MSD 
Gone but NOT forgotten: 97 Z28, boltons, stock cam/heads, NOS ...mid 12's.
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