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lets talk about torque! Heads for 305?

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Old Feb 15, 2005 | 05:31 AM
  #1  
swisscheese's Avatar
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From: somewhere over the pond
Car: '91 Z28
Engine: LB9
Transmission: T5
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lets talk about torque! Heads for 305?

with the 305, the choices of heads are not that big. So the world torquers and the vette heads seem to be the only ones.
The claims are ~60hp improvement for heads and cam. But i'm wondering what torque gains i can expect for this upgrade, since the car is only street driven? (damn, we don't have any race tracks here... )
Anyone can help me? (dynosheet are welcome )

Thanks
Pat
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Old Feb 15, 2005 | 07:48 AM
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From: Springfield, MO
Car: 92 T/A VERT
Engine: LB9
Transmission: AUTO
Axle/Gears: 7.5 / 3.42's
TrickFlow now sells a head with 58cc chambers, 1.94/1.50 valves and 175cc intake runners for the 305. The post 1987 ones are about $1,000 from Summit.
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Old Feb 15, 2005 | 03:25 PM
  #3  
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couldn't find it on their website. Are they for sale allready?
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Old Feb 15, 2005 | 03:44 PM
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From: Pleasant Grove, Utah
Car: 1993 GMC Typhoon
Engine: 4.3 Turbo
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Axle/Gears: 3.42
you can use from 416 casting heads.. those are the HO heads and flow pretty well when ported
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Old Feb 15, 2005 | 07:58 PM
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wow trickflow is making a set of heads for 305's now. thats awsome. anybody got any more info on them. i wonder if they flow as well as a set of ported 416's
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Old Feb 16, 2005 | 08:00 AM
  #6  
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From: Springfield, MO
Car: 92 T/A VERT
Engine: LB9
Transmission: AUTO
Axle/Gears: 7.5 / 3.42's
Originally posted by swisscheese
couldn't find it on their website. Are they for sale allready?
They must be, they are on page 134 of the new catalog?
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Old Feb 16, 2005 | 10:42 AM
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Car: '91 Z28
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ahh, found a topic in the tbi forum about them.
Damn are they really this expensive???
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Old Feb 22, 2005 | 11:18 AM
  #8  
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Car: '91 Z28
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I'm wondering if they are a direct bolt-on or I would have to do some stuff like EGR rerouting...
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Old Feb 22, 2005 | 12:11 PM
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doesnt dart make a 49 cc chamber? seems way to small
but another option
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Old Feb 22, 2005 | 01:39 PM
  #10  
swisscheese's Avatar
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Car: '91 Z28
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nahh, its 44cc!
probably would fit the V40 T4 since they are writting "works well with turbo"
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