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Swirl port head comparison

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Old Mar 13, 2009 | 01:27 PM
  #1  
Keith91sub's Avatar
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From: Costa Mesa, CA
Car: Chevy Suburban-ish "Camaro" 1991
Engine: 383
Transmission: 4L80e
Swirl port head comparison

I have a 383 TBI that has ProTopline Swirl Port Heads (driect replacement for GM # 14102193 350 TBI heads). Does anyone know if the ProToplines are any better than the GM castings? They clearly still have the intake "ramp" in the port, I just am hoping that they are designed better that what I read about the stock ones.

thanks,
Keith
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Old Mar 14, 2009 | 12:03 AM
  #2  
robertfrank's Avatar
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From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
Re: Swirl port head comparison

What!?!?!?!?!? I have to check these out. This should be interesting.
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Old Mar 14, 2009 | 01:06 AM
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: Swirl port head comparison

Can you post a pic of the intake port and of the heads overall?
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Old Mar 25, 2009 | 08:07 PM
  #4  
Keith91sub's Avatar
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From: Costa Mesa, CA
Car: Chevy Suburban-ish "Camaro" 1991
Engine: 383
Transmission: 4L80e
Re: Swirl port head comparison

I can not get a pic of the port as the valves are installed
Here is a pic of the heads overall:
Attached Thumbnails Swirl port head comparison-dsc_0002.jpg   Swirl port head comparison-dsc_0004.jpg  
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Old Mar 25, 2009 | 09:18 PM
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: Swirl port head comparison

Hate to be the one to say it but those just look like warmed over stock 193 heads.
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Old Mar 26, 2009 | 04:28 PM
  #6  
Keith91sub's Avatar
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From: Costa Mesa, CA
Car: Chevy Suburban-ish "Camaro" 1991
Engine: 383
Transmission: 4L80e
Re: Swirl port head comparison

Originally Posted by dimented24x7
Hate to be the one to say it but those just look like warmed over stock 193 heads.
Yah, that's what I thought, but was hopping someone had different experiance w/ them. They are sold as direct 193 replacements.
Time to start saving the pennies for new heads. Maybe next year.
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