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Anyine run TFS 220 fast as cast heads???

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Old Aug 19, 2017 | 04:50 PM
  #11  
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Originally Posted by 1FastBrick
On a Side note, What's the deal with those rocker arms I see you posted on the tech Side?
It was worth another LOL from me.
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Old Aug 20, 2017 | 05:35 PM
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What about Texas Speed heads Corey? They run about $1400 for LS6 2.5 heads.
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Old Aug 20, 2017 | 05:38 PM
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With dual springs they are $1650. $1400 is bare with valves only.
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Old Aug 21, 2017 | 06:02 PM
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Originally Posted by RPMSpeed Tech
With dual springs they are $1650. $1400 is bare with valves only.
Yah that's what I'm seeing on their website, just wondering how they compare to these trickflow heads
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Old Aug 21, 2017 | 06:11 PM
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They are somewhat close but youre getting a brand new head and a head with LOTS of room to grow later on. The tsp 2.5s are all you get. No more can be done.
Making all things the same and either bringing the tsp heads down to 3.900 bore or tfs up to 3.910 bore the tfs outflow the 2.5 ls6 heads. Esp on exhaust side. The better valve angle promotes more tq and better unshrouding of the valve at higher lift.
For the marginal difference its no contest.
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