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What are the BEST heads for my street/strip car??

This is a discussion on What are the BEST heads for my street/strip car?? within the Internal Engine forums, part of the LSx Technical Help Section category; But he's getting a S/C in the future so the compression loss will help that later on. AFR's are just ...

  1. #21
    Senior Member MadSeason's Avatar
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    But he's getting a S/C in the future so the compression loss will help that later on. AFR's are just a name, you can find matched performance for less elsewhere. Because of the way patriot produces there products is what makes them less, not because it's any less quality. I gained 7 HP and 5 TQ over AFR's with my patriots and didn't spend 120000 pennies to get a same result. The flow sheet I got on my heads is also close to that of AFR, a few single digits under in a few catagories, but flow numbers aren't everything. If the most expensive part is always the best then why do people shop around?

  2. #22
    Senior Member MadSeason's Avatar
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    Quote Originally Posted by Sarge
    I'm putting down over 600RWTQ in my 04 Goat with Patriot Stage II's and a Comp Cam 588 lift......and a few other things.....I swear by the Patriot quality and performance....

  3. #23
    Slow'er'Ass Mr. Luos's Avatar
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    I think my Patriots look great and the customer service can't be beat.

    And flow numbers are nowhere near everything. AFR's flow about the same with MUCH less distortion than the Patriots. The AFR's also flow much better under peak lift.

    Not going to argue about it. It always happens.
    I will defend Patriot as the best bang for buck heads.
    I will defend AFR for having one of the top LSx heads.
    2008 Trailblazer SS
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    1999 Pontiac Trans Am WS.6 #1747 SOLD
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  4. #24
    Senior Member NeeD4SpeeD's Avatar
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    What about Dart heads??? Anyone heard anything on on these heads?

    Also is it true that patroit heads are 50lbs extra weight on the engine?

  5. #25
    Senior Member NeeD4SpeeD's Avatar
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    Quote Originally Posted by Sarge
    I'm putting down over 600RWTQ in my 04 Goat with Patriot Stage II's and a Comp Cam 588 lift......and a few other things.....I swear by the Patriot quality and performance....
    600RWTQ!! What other supporting mods do you have?? It's gotta be forced induction... How much HP is it putting to the ground and how's the cars drivability??

    P.S. Are the patriot heads heavy? Heard they were iron not aluminum..

  6. #26
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    LQ9 heads are 6.0 truck heads, they are aluminum. There is a good reason AFR heads are expensive, their design and quality out of the box is unmatched. They can be further ported, blended and polished and most importantly they have a 3/4" deck hight that makes them very strong and that's a real plus for power adders.
    Last edited by SOMSS; 11-14-2005 at 11:36 AM.
    2001 SS - 430 RWHP 412 RWTQ
    6 spd, FIPK, Corsa exhaust, LS7 clutch, Dart Pro PP LS1 heads, custom 220/224 cam, Kooks LT's. Ported TB, Full suspension, C5 ZO6 brake upgrade.

  7. #27
    Slow'er'Ass Mr. Luos's Avatar
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    I thought all the Gen III heads were aluminum.

  8. #28
    Grand Imperial Wizard Sarge's Avatar
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    Quote Originally Posted by NeeD4SpeeD
    600RWTQ!! What other supporting mods do you have?? It's gotta be forced induction... How much HP is it putting to the ground and how's the cars drivability??

    P.S. Are the patriot heads heavy? Heard they were iron not aluminum..
    Shit son...cams...valves...Shaner TB..LSX intake..punched...KN CAI.....LT headers....and a 100 shot...tons of frame and drivetrain mods....going 150 this weekend... Drives like a girl who just got laid really good...that is why I went nitrous and not FI.....turn it on and turn it off....she be a bad bitch...did you vote for Hillary?

  9. #29
    Senior Member NeeD4SpeeD's Avatar
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    Ok in seeing that the patriot heads are alot heavier then stock (which im not sure if i want) anyone ever hear of dart heads??

  10. #30
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by NeeD4SpeeD
    Ok in seeing that the patriot heads are alot heavier then stock (which im not sure if i want) anyone ever hear of dart heads??
    My Patriot heads felt like the same weight as the stockers.
    They are aluminum.
    And I believe ALL Gen III heads are also aluminum.

    It is the block that is iron on the truck motors.

  11. #31
    Grand Imperial Wizard Sarge's Avatar
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    Quote Originally Posted by NeeD4SpeeD
    Ok in seeing that the patriot heads are alot heavier then stock (which im not sure if i want) anyone ever hear of dart heads??
    Heavier? Patriot heads begin life just like the stockers......then Patriot machines them to their specs.....what are you talking about?

  12. #32
    Senior Member NeeD4SpeeD's Avatar
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    Quote Originally Posted by Sarge
    Heavier? Patriot heads begin life just like the stockers......then Patriot machines them to their specs.....what are you talking about?
    Somebody told me that patriot heads were made from cast iron rather then aliminum... I thought it was true considering it was from a reputiable person (apperantly the dickhead was wrong)

    So basically what your saying is that the patriot heads aren't 50lbs heavier then stock and are made from aluminum??

  13. #33
    Junior Member Eric@VictoryRacing's Avatar
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    Quote Originally Posted by NeeD4SpeeD
    What about Dart heads??? Anyone heard anything on on these heads?
    Here are the Dart flow numbers:

    205cc Head
    .200 156 109
    .300 215 154
    .400 258 187
    .500 290 205
    .550 296 210

    225cc Head
    .200 144 109
    .300 202 154
    .400 254 187
    .500 290 205
    .550 301 210
    .600 313 214

  14. #34
    BlackHawk T/A
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    Yes Patriot heads are aluminum...

    Also flow numbers are great, but there are more factors that come in to play that help heads make power that you can't see without a dyno.

  15. #35
    Senior Member NeeD4SpeeD's Avatar
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    Quote Originally Posted by Eric@VictoryRacing
    Here are the Dart flow numbers:

    205cc Head
    .200 156 109
    .300 215 154
    .400 258 187
    .500 290 205
    .550 296 210

    225cc Head
    .200 144 109
    .300 202 154
    .400 254 187
    .500 290 205
    .550 301 210
    .600 313 214
    Well some nice flow numbers but i'm guessing no dyno yet...

  16. #36
    Senior Member NeeD4SpeeD's Avatar
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    Quote Originally Posted by BlackHawk T/A
    Yes Patriot heads are aluminum...

    Also flow numbers are great, but there are more factors that come in to play that help heads make power that you can't see without a dyno.
    Yea i gotch was just wondering because i DONT want to add extra weight to my car (thats the last thing i want) but aslong as its a good head that will give close HP gains to the AFRs then i think im sold!!

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    Dart Pro LS1 heads are really well made and have the potential to make big power out of the box. I have seen a Dart h/c packages going for only $1700 complete ready to bolt on.

  18. #38
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    All AFRs are just plain over priced.

    All AFRs are just plain over priced.

  19. #39
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    Quote Originally Posted by NeeD4SpeeD
    Yea i gotch was just wondering because i DONT want to add extra weight to my car (thats the last thing i want) but aslong as its a good head that will give close HP gains to the AFRs then i think im sold!!
    If you consider 25 RWHP close.....


    AFR's might be pricey. IF they are overpriced it isn't by much. I would consider them worth the money.

    Let me put it this way...
    On my 11:1 compression 402 I plan on hitting 500 RWHP. Patriot Stage 3 LS6 heads.
    IF I were to run the AFR 225's I would be looking for more like 535-540 RWHP.

  20. #40
    Senior Member NeeD4SpeeD's Avatar
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    i see what you mean i guess their worth the extra $$$... And no 25RWHP isnt close thats alot to me.... I dont know i wanna break 500RWHP N/A also and i figured the patriots could get me there for alot cheaper then the AFRs and with the extra money go for other mods.

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