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Heads and intake have me in the rear naked choke

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Old 12-05-2012, 03:46 PM
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Default Heads and intake have me in the rear naked choke

I need to let this motor breath with better heads and intake setup before i tap out.

I have a set of ported 317's(lightly)and ls6 intake/ported tb.
The cam is 252/256 612/612 112
The bottom end is a forged/stroked 408 at 10:5 to 11:1 compression.

I'm looking at the ported fast 102/102 setup from vengeance racing that seem to be a good deal.

What heads would best benefit my motor?
Old 12-05-2012, 04:01 PM
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I would look at some big cathedral port heads, unless you are open to swapping out the cam.
Old 12-05-2012, 04:27 PM
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Originally Posted by KCS
I would look at some big cathedral port heads, unless you are open to swapping out the cam.
That's a option too
Old 12-05-2012, 04:34 PM
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That cam is monsterous!! I would say go with an ls3 top end to maximize the potential.
Old 12-05-2012, 05:09 PM
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You have any sound clips of that BEAST cam? I gotta hear it!
Old 12-05-2012, 05:27 PM
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I would read into the reviews of vengances fast porting,from what i have read thats something you can easily do yourself,the cheapest way would be to swap out the cam,or look into some cathedral heads and fast 102 setup,i thought my setup had a choke hold lol
Old 12-05-2012, 06:06 PM
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Originally Posted by Camaroking1996
That cam is monsterous!! I would say go with an ls3 top end to maximize the potential.
On my last 408 i bought some L92 heads and intake and sent them off to larry meaux to get ported.I sold the motor before i put it in my car.Might look into them also.




Originally Posted by 1gt2nv
You have any sound clips of that BEAST cam? I gotta hear it!
I'll try to get a few this weekend at the track




Originally Posted by BOBS99SS
I would read into the reviews of vengances fast porting,from what i have read thats something you can easily do yourself,the cheapest way would be to swap out the cam,or look into some cathedral heads and fast 102 setup,i thought my setup had a choke hold lol

I read a little on their porting and weighed out the price of new and ported and they were not far off.
Old 12-05-2012, 07:00 PM
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you can buy some stock ls3 heads from SDPC for $650 a set.check Texas Speed for some ported l92/ls3 heads.
Old 12-05-2012, 07:06 PM
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Ls3/l92 top end for sure unless you got the cash for aftermarket heads like afr or trickflow and a fast intake...
Old 12-06-2012, 07:16 AM
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Texas speed acualy built this motor and ive been on their website almost everyday for the past three weeks.charlie at futral suggested trickflow 235s.Im the type thats going to take my time and do the homework before I spend this big chunk.
Old 12-06-2012, 07:28 AM
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In my opinion, the LS3 style heads and that cam would be a very poor match, which is why I would use the cathedral ports. Swap a cam with about 15 degrees less duration on the intake and about 10 less on the exhaust, and I think that would be more suitable for the LS3 style.
Old 12-06-2012, 11:03 AM
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https://www.texas-speed.com/p-3557-p...der-heads.aspx


These are the heads Texas speed suggested along with a fast 102/102
Old 06-23-2013, 01:04 PM
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Update

I put a ported fast 92/92 on and leaning toward the mast motorsports cathedral port 245's.opions using my cam?

http://www.mastmotorsports.com/2010/...sembled&id=369
Old 10-13-2013, 04:15 PM
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Here is a video of the cam
Old 10-13-2013, 05:09 PM
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that thg sounds like a beast!!!!
Old 10-13-2013, 05:51 PM
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I'd get some TFS 245s from TEA and buy the TEA port-matched FAST 102. They port match the intake to the heads...
Old 10-13-2013, 06:33 PM
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Originally Posted by JakeFusion™
I'd get some TFS 245s from TEA and buy the TEA port-matched FAST 102. They port match the intake to the heads...
I've been eye balling them tfs/tea 245's and 235's too.I had my phone videoing sideways and don't know why its upside down.



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