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ideas heads for 408

This is a discussion on ideas heads for 408 within the Internal Engine forums, part of the LSx Technical Help Section category; Im building a 408 and about to order heads wanted opinions i was planning on going with the TF 215 ...

  1. #1
    408 ci + 4000 stall = fun lancesT/A's Avatar
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    ideas heads for 408

    Im building a 408 and about to order heads wanted opinions i was planning on going with the TF 215 64cc which will run me 2400 but the patriots are about half the price was just wonder if i really am getting what i pay for with the trickflow heads or if i can get a better bang for the buck heads

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    Member Bouvers's Avatar
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    I would personally get AFR 225's

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    Firebird Encyclopedia 9T8W66's Avatar
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    King 0f n00bz shady milkman's Avatar
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    stay with TF ..those are very solid heads..they also change the valve degree from 18 to 12-13 ...TF gets its castings from AFR ..then they work them over and wala you have the TFs ...

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    Manhattan Trans Am SHovV's Avatar
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    i think you'll also need special valvetrain with TFS.

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by SHovV View Post
    i think you'll also need special valvetrain with TFS.
    no you dont .......

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    408 ci + 4000 stall = fun lancesT/A's Avatar
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    ya i told my shop i was thinking about go with different heads and they said since im spending about 10k all together with my 408 build they would give me a discount on the heads and sell them to me for 1800 instead of 2400 so that is my choice thanks for the input

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by lancesT/A View Post
    ya i told my shop i was thinking about go with different heads and they said since im spending about 10k all together with my 408 build they would give me a discount on the heads and sell them to me for 1800 instead of 2400 so that is my choice thanks for the input
    good choice ! i will be going with TF for my heads when i get the money for my 346 build

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    absolutely nothing wrong with TFS although you do have to run roller rockers with their valve train geometry... I wouldn't care as I would be doing the upgrade regardless but just so you know...

    I recommend Yella Terra... affordable and excellent...

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    Quote Originally Posted by shady milkman View Post
    no you dont .......
    You cant run the factory rockers with the TF's
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    Veteran Hi-Po's Avatar
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    Quote Originally Posted by NoscamaroSS View Post
    You cant run the factory rockers with the TF's

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    Member anniversary30's Avatar
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    What about dart? I have the 225's and they ran about 1800.

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by NoscamaroSS View Post
    You cant run the factory rockers with the TF's
    i understand..but i dont classify roller rockers as special valve train and i dont think the op was talking about bares..so all would be supplied

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    Member NoscamaroSS's Avatar
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    Quote Originally Posted by shady milkman View Post
    i understand..but i dont classify roller rockers as special valve train and i dont think the op was talking about bares..so all would be supplied
    True, I was just trying to clarify so the OP doesnt get confused or accidentaly mislead.

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    408 ci + 4000 stall = fun lancesT/A's Avatar
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    the heads come fully assembled with roller rockers included

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    Is there any downside to running L92's?

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    Veteran Hi-Po's Avatar
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    Quote Originally Posted by need4fun2469 View Post
    Is there any downside to running L92's?
    Limited on the intakes you can run. L92's have proven themselves, they are great heads with some mild port work.

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    Junior Member need4fun2469's Avatar
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    Quote Originally Posted by Hi-Po View Post
    Limited on the intakes you can run. L92's have proven themselves, they are great heads with some mild port work.
    can you be more specific? I have been trying to research the pros and cons of these heads.thx

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    Veteran Hi-Po's Avatar
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    Well, The L92 had is based of the LS7 head. Different port design. LS1/2/6 = cathedral port.

    L76 intake will work on the L92 heads, but I do not believe it will clear any fbody hood. The LS7 intake I beleive will fit also. And, if some would correct me on this, I am pretty sure the "new" 102 mm way over priced-barelt worth noting gain- over a 92mm FAST intake will work also.

    Maybe someone will chime in here with L92 heads who has first hand experience, I do not. Im here learning right beside you

    Havent heard of too many L92 runners here though.

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    Senior Member Bottesini's Avatar
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    Quote Originally Posted by Hi-Po View Post
    Well, The L92 had is based of the LS7 head. Different port design. LS1/2/6 = cathedral port.

    L76 intake will work on the L92 heads, but I do not believe it will clear any fbody hood. The LS7 intake I beleive will fit also. And, if some would correct me on this, I am pretty sure the "new" 102 mm way over priced-barelt worth noting gain- over a 92mm FAST intake will work also.

    Maybe someone will chime in here with L92 heads who has first hand experience, I do not. Im here learning right beside you

    Havent heard of too many L92 runners here though.
    Right now your only options that I know of for intakes with the L92 heads are the LS3 (not sure if this is the same as L92), L92, L76 (think there are a few carb style intakes as well). The FAST 102 will also be for the L92 heads.

    I have been doing quite a lot of looking into these heads, and plan on putting a set from West Coast Cylinder Heads on my new 402. For the dollar they are great heads (flow great even in stock form). However, you are severely limited as far as intakes, and I would not expect to make a high rpm screaming engine (yet). Eventually, I believe that the rectangular design is where heads for the LS are headed, just the everything needs to catch up.

    As for the OP it really depends on what you want to do with the engine. Trick Flow makes great products and I have heard many good things about them. They also have several heads that will work well, it just depends on your application.

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