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Trickflow 235cc heads

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Old Jan 31, 2008 | 05:57 PM
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Default Trickflow 235cc heads

Has anybody heard of these? I saw them in Chevy High Performance magazine but they they might be to big for a stock bore LS2/LS3. Does anybody think that they will work/produce big numbers on stock bore cars? Also do you think they would be good on heavily modded LS2's (G5X3 cam or bigger, Ported FAST, etc,etc)
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Old Feb 1, 2008 | 11:38 PM
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nobody has an opinion on these.
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Old Feb 2, 2008 | 05:04 AM
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Originally Posted by blackvette101
Has anybody heard of these? I saw them in Chevy High Performance magazine but they they might be to big for a stock bore LS2/LS3. Does anybody think that they will work/produce big numbers on stock bore cars? Also do you think they would be good on heavily modded LS2's (G5X3 cam or bigger, Ported FAST, etc,etc)
So many people think runner size is the end of the discussion with heads. How many LS2 with LS3 heads and now the LS3 makes awesome power with an intake runner that is 260cc. Most of the time the bigger runners produce more top end at the expense of the low end. The fastest cars have the smaller runners....or the LS3 heads.

I was in a car with the 215's and a 232xer cam. It was fast. It was also a LS6 in a C5. The cam you are talking about is a bit bigger but I think the 215's are a great match for the cam. AFR 205 and the X3 did 495 rwhp. I have seen box stock LS3 heads make 490 with that same cam on an LS2. Think about what you want to do.
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Old Feb 2, 2008 | 09:10 AM
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Originally Posted by SpinMonster
So many people think runner size is the end of the discussion with heads. How many LS2 with LS3 heads and now the LS3 makes awesome power with an intake runner that is 260cc. Most of the time the bigger runners produce more top end at the expense of the low end. The fastest cars have the smaller runners....or the LS3 heads.

I was in a car with the 215's and a 232xer cam. It was fast. It was also a LS6 in a C5. The cam you are talking about is a bit bigger but I think the 215's are a great match for the cam. AFR 205 and the X3 did 495 rwhp. I have seen box stock LS3 heads make 490 with that same cam on an LS2. Think about what you want to do.
Hey spin I plan on eventually making it a supercharged 408 do you think it's worth it to get these now and just live with the loss of the low end until then. Also do you think these heads will make more power from 4,000+ RPM than other heads. I plan on bumping ip the compression with a thinner head gasket when I do my heads also.
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Old Feb 2, 2008 | 11:44 AM
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Originally Posted by SpinMonster
So many people think runner size is the end of the discussion with heads. How many LS2 with LS3 heads and now the LS3 makes awesome power with an intake runner that is 260cc. Most of the time the bigger runners produce more top end at the expense of the low end. The fastest cars have the smaller runners....or the LS3 heads.

I was in a car with the 215's and a 232xer cam. It was fast. It was also a LS6 in a C5. The cam you are talking about is a bit bigger but I think the 215's are a great match for the cam. AFR 205 and the X3 did 495 rwhp. I have seen box stock LS3 heads make 490 with that same cam on an LS2. Think about what you want to do.
It really depends on your use. Higher top end may be better if you have an extreme amount of power. Especially for racing.
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Old Feb 2, 2008 | 05:10 PM
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Originally Posted by fafnir
why don't you try all pro lsw's or et ls7x? a LOT less machining work to get them on and makes more power anyways for less overall cost
who makes those heads
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Old Feb 3, 2008 | 03:23 PM
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Originally Posted by fafnir
i just told you in the post above !?!?!?

all pro heads - > google "all pro heads" makes their "LSW Hurricane" heads

and et performance - > google "et heads" makes their "LS7 41 ETP" heads


both of those would outflow and out perform anything from trickflow and cost less installed due to less/no machining work

there are a lot of other head companies such as PRC that ports heads for nice effect

and builders like LPE and callaway port heads

but for true aftermarket heads that were MADE, not some ported core, there are only so many possibilities

et heads also makes a "canted valve" head that would be hard to beat but at 3x the cost

also, if you're into more exotic stuff, mast motorsports makes VVT (variable valve timing) GEN-IV engines, think of honda vtec for your LS7, e.g. smooth idle and hot cam high end performance and sound

also, have you ever been on the ls1tech.com forums?


_
No i havent.
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Old Feb 3, 2008 | 03:25 PM
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Originally Posted by fafnir
why don't you try all pro lsw's or et ls7x? a LOT less machining work to get them on and makes more power anyways for less overall cost

I have LS7X heads they are made by WorldCastings

I had my heads polished and assembled by Total Engin AirFlow,
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Old Feb 3, 2008 | 03:40 PM
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Originally Posted by extremecorvette
I have LS7X heads they are made by WorldCastings

I had my heads polished and assembled by Total Engin AirFlow,
How much HP did you end up getting from them
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Old Feb 3, 2008 | 07:20 PM
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Originally Posted by blackvette101
Hey spin I plan on eventually making it a supercharged 408 do you think it's worth it to get these now and just live with the loss of the low end until then. Also do you think these heads will make more power from 4,000+ RPM than other heads. I plan on bumping ip the compression with a thinner head gasket when I do my heads also.
Never mind they need a 4.030 bore to fit.
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Old Feb 4, 2008 | 09:57 AM
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Originally Posted by blackvette101
How much HP did you end up getting from them
My LS7X heads are heads for the LS7 motor 4.125” bore. I don’t have a scanner or I would put up the flow sheet. I got 322cfm @ 0.400 and 398cfm @ 0.600, I’m using a comp 918 dual spring, seat 162 lbs, open 404 lbs, rate 500. My heads are going to be used on my WarHawk APS twin turbo Z06 car. Motor is just getting done but still waiting on the kit.

Crower made custom shaft rockers for this motor for me also. Look great on the heads and should be coming out on the market soon. Just like the Jessels in the way they go on the heads.
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Old Feb 4, 2008 | 02:25 PM
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Originally Posted by fafnir
i don't know what in the above post might be construed as offensive

i'm just trying to tell you that if you picked up trickflows that you'd be surprised at the amount of machining work necessary to make them fit right

they will not just simply install like LPE, callaway, LG, etc




_
i'm not offended at all i really haven't i'm going to get on there soon.
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