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Good heads for 400sbc?

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Old Mar 5, 2007 | 08:22 PM
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From: Jerome, Michian 49249
Car: 91 RS
Good heads for 400sbc?

What do you guys think about these heads for my 400 sbc. It will be a daily driver and eventually plan on sparyin a 150 shot of nos. Let me know if you guys think these will work well or not. http://cgi.ebay.com/ebaymotors/SBC-A...hippingPayment

Codey
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Old Mar 5, 2007 | 10:01 PM
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Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
A pair of 190cc AL heads bare, for $400? Sounds too good to be true.
I'd try to find a flow bench chart of them.
They say ProComp, but...

Check your CR with those 64cc heads. You'd need dished pistons to have a usable CR ratio.

If they flow ok, those would work great, just need to drill the steam holes and you're good to go.
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Old Mar 6, 2007 | 06:31 AM
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From: Jerome, Michian 49249
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I'm tryin to get a flow chart from the guy, if i get one ill post it here
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Old Mar 6, 2007 | 12:01 PM
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From: Jerome, Michian 49249
Car: 91 RS
Intake
.100 - 70.7
.200 - 146.4
.300 - 203.7
.400 - 249.8
.500 - 260.9
.600 - 268.5
.700 - 276.4
Exhaust
.100 - 56.9
.200 - 100.9
.300 - 156.9
.400 - 176.8
.500 - 186.3
.600 - 190.1
.700 - 194.8
Theres the flow chart, are those numbers good for the price of the head? Think it will work decent on my 400?
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Old Mar 6, 2007 | 02:26 PM
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From: Jerome, Michian 49249
Car: 91 RS
Any one?
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Old Mar 6, 2007 | 04:14 PM
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Car: 1985 IrocZ
Engine: Carbed 383
Transmission: Tremec T-56
Axle/Gears: 3.42
Those numbers are pretty good but i highy doubt they flow what is listed there. I would be a little leary buying a new set of alum. heads for $400 off ebay.
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Old Mar 6, 2007 | 04:16 PM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Wow, that's damn good. 260cfm at .500", and 250 @ .400" on the intake.
Thats a very good price, and would work quite well. Just remember the steam holes.

I'd be a little leery, sounds too good to be true to me.
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Old Mar 6, 2007 | 04:19 PM
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From: Jerome, Michian 49249
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hmm... it does seem to good to be true, maybe i should take the risk and let you guys know how they work lol, i think im gonna
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Old Mar 6, 2007 | 05:05 PM
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Car: 91 RS
Engine: 350 vortec
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Axle/Gears: not the best not the worst
i think you will be dissapointed... what the hell do they mean dual quench design? and they are bare... hmmm.... if you get 2 unmachined peices of Al i would break their knee caps
but this is my favorite part....For the quickest response please email us using the eBay contact feature.
We are closed on Weekends and Holidays, no shipping and no questions/emails will be answered.

Last edited by SpitotRs305; Mar 6, 2007 at 05:09 PM.
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Old Mar 6, 2007 | 05:10 PM
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From: Ohio
Car: 1985 IrocZ
Engine: Carbed 383
Transmission: Tremec T-56
Axle/Gears: 3.42
If it were me i wouldnt take the chance. Just remember you get what you pay for.
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Old Mar 6, 2007 | 07:50 PM
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From: MD
Car: '88 IROC-Z medium orange metallic
Engine: L98
Transmission: 700R4
Axle/Gears: 3.27
flow doesn't mean **** if the castings are junk. Not to mention that flow numbers can be falsified. I can change the setting on my flow bench and make a set of stock double humps flow 300cfm. You're not going to get a good set of heads for $400.
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Old Mar 6, 2007 | 08:18 PM
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From: Jerome, Michian 49249
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hmmm i think you guys talked me out of taking the chance lol
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Old Mar 6, 2007 | 08:27 PM
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From: MD
Car: '88 IROC-Z medium orange metallic
Engine: L98
Transmission: 700R4
Axle/Gears: 3.27
Good.

Save your pennies and buy something worth while. AFR's or a set of Brodix T1's.
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Old Mar 6, 2007 | 10:23 PM
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From: okotoks Alberta
Car: 1991 Camaro RS
Engine: 406ci
Transmission: T-56 LT1
Axle/Gears: 3.42
i got a new set of the afr 195 eliminators for sale , in the for sale section if interested
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Old Mar 6, 2007 | 10:35 PM
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From: Ontario, Canada
Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
Originally Posted by Blake
i got a new set of the afr 195 eliminators for sale , in the for sale section if interested
Why are ya selling them? Aren't they supposed to be the next best thing to sliced bread?
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Old Mar 6, 2007 | 11:12 PM
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From: okotoks Alberta
Car: 1991 Camaro RS
Engine: 406ci
Transmission: T-56 LT1
Axle/Gears: 3.42
they are even better

selling them because i need the 75cc chamber, these are 65 cc
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Old Mar 7, 2007 | 12:01 AM
  #17  
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From: Ontario, Canada
Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
cool
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Old Mar 7, 2007 | 05:52 AM
  #18  
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Buy the AFRs or I will
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Old Mar 7, 2007 | 09:21 AM
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Car: '88 IROC-Z medium orange metallic
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Transmission: 700R4
Axle/Gears: 3.27
Originally Posted by Blake
they are even better



I'm still waiting to see a valid test on them.
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