Who makes the most NA power with modified, stock casting cathedral heads?

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08-31-2013, 04:14 AM

texas94z

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Who makes the most NA power with modified, stock casting cathedral heads?

Also, in theory, what do you think are the maximum limits of stock casting cathedral heads?

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08-31-2013, 07:43 AM

Ronny_02_WS6

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AI (Advanced Induction) can port them to the max really good.

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08-31-2013, 09:32 AM

intenseblue

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Cartek has had the highest dyno numbers by a pretty fair margin and their track times backed them. Second to that goes to TEA or Total Engine Airflow.

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08-31-2013, 09:41 AM

whatsa347

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Cartek 4x

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08-31-2013, 09:46 AM

Loudmouthls2

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I hear trickflows are really good along side ai

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08-31-2013, 10:03 AM

Jimbo1367

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Quote:

Originally Posted by Loudmouthls2

I hear trickflows are really good along side ai

Stock castings. So TFS are out. TEA or AI. Take your pic. I have heard of Cartech 243s, but never seen any detailed threads FWIW

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08-31-2013, 10:16 AM

texas94z

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Quote:

Originally Posted by intenseblue

Cartek has had the highest dyno numbers by a pretty fair margin and their track times backed them. Second to that goes to TEA or Total Engine Airflow.

Any details?

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08-31-2013, 10:23 AM

Rise of the Phoenix

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The money you would have to spend on the Cartek 4x porting would be far more than having TEA or AI do the port work. The Cartek 4x heads may be worth an extra 5 to 10 HP, but it's going to cost you a lot more.

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08-31-2013, 10:40 AM

studderin

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whats the info on cartek sg4? alex? 10.3 with 515whp on 243s.

cam only is 9.9 just saying

SAM went 150 NA on 243s. 850+ I think thats gona be the fatest,

130s in not that fast for ported heads

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08-31-2013, 10:51 AM

#10

studderin

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joe honeycutt also ran older ET 215s greg good ported alot. best was a 8.6 NA I think it was 153

https://ls1tech.com/forums/drag-raci...neak-peak.html
https://ls1tech.com/forums/generatio...eel-hp-na.html

Last edited by studderin; 08-31-2013 at 11:22 AM.

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08-31-2013, 11:57 AM

#11

texas94z

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Studderin, that's exactly what I was looking for. Thanks.

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08-31-2013, 12:03 PM

#12

ls6jay

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Have to have induction to support good heads. I have ported supervic. Flows around 305cfm. That made a huge difference. Cylinder heads are nothing with out good induction.

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08-31-2013, 12:04 PM

#13

Rise of the Phoenix

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I just remember someone selling a used set of the Cartek 4x heads and in the sale thread, he mentioned how much money he had into them. Can't remember exactly, but quite a bit more than TEA or AI ported 243/799 heads.

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08-31-2013, 09:42 PM

#14

Camaro99SS

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I made 452rwhp with stock 241's ported by advanced induction. Nice broad torque curve and stock drive ability.

Jason

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09-01-2013, 08:42 AM

#15

intenseblue

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Do a search in this forum and dyno and track forums for Cartek

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09-02-2013, 10:04 AM

#16

intenseblue

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I was thinking of stock cubic inch cars and readily avilable cnc programs to mass public. But regardless ill try and pull some links today of older cartek cars.

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