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One ported head vs another...

This is a discussion on One ported head vs another... within the Internal Engine forums, part of the LSx Technical Help Section category; What is the difference between lets say a patriot head and an AFR head as far as porting goes? There ...

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    Junior Member anti-social's Avatar
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    One ported head vs another...

    What is the difference between lets say a patriot head and an AFR head as far as porting goes? There both ported, so what makes the more expensive head so much better?

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    Senior Member INMY01TA's Avatar
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    AFR uses their own castings. Patriot ports stock lsx heads. Patriot can't touch the new AFR castings.

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    Member M6HUGGERSS's Avatar
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    Quote Originally Posted by INMY01TA View Post
    AFR uses their own castings. Patriot ports stock lsx heads. Patriot can't touch the new AFR castings.

    thats it in a nut shell......

    patriot, buys stock GM heads, and modifys them.
    AFR is an aftermarket head, with many benifits.

    the choice will be in your budget and goal for the car.

    small-med H/C .... patriot
    max output H/C, or FI..... AFR

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    Junior Member anti-social's Avatar
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    what about n20? Wich head would you go with?

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    Member M6HUGGERSS's Avatar
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    afr.

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    Junior Member anti-social's Avatar
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    But the patriot's are no nicely priced! Do you think it will matter when sprayin???

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    Quote Originally Posted by anti-social View Post
    What is the difference between lets say a patriot head and an AFR head as far as porting goes? There both ported, so what makes the more expensive head so much better?
    Answer to this is, There are different extremes of porting. The ones im fimilar with are, pocket port, tear drop, and gasket match. Basically its how much work has been done to them.

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    Junior Member anti-social's Avatar
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    So i guess if you have a FI or max effort N/A car, it is better to go with the top of the line head. But what about if you want max power on spray? Will the better head make that much of a difference?

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    Junior Member anti-social's Avatar
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    Anyone???

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    For any power adder the AFR heads will hold up better and produce more hp.
    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.

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    Junior Member anti-social's Avatar
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    Quote Originally Posted by SOMSS View Post
    For any power adder the AFR heads will hold up better and produce more hp.
    I know it will be more HP with the AFR's, but how much more? 10 HP? & how will they hold up better?

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    Senior Member MadSeason's Avatar
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    If you can afford an extra grand for AFR just to gain bragging rights on top flow number when you're at peak rpm go for it. Otherwise it's a waste of money over the patriots. http://edigras.iweb.bsu.edu/headscam.htm

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    Senior Member INMY01TA's Avatar
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    Quote Originally Posted by MadSeason View Post
    If you can afford an extra grand for AFR just to gain bragging rights on top flow number when you're at peak rpm go for it. Otherwise it's a waste of money over the patriots. http://edigras.iweb.bsu.edu/headscam.htm
    Laughible.

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    Junior Member anti-social's Avatar
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    Quote Originally Posted by MadSeason View Post
    If you can afford an extra grand for AFR just to gain bragging rights on top flow number when you're at peak rpm go for it. Otherwise it's a waste of money over the patriots. http://edigras.iweb.bsu.edu/headscam.htm
    Nice info! So I guess "budget" doesent mean bad? I guess the AFR's are for people that have the extra cash & dont care about comparisons, they just want the better heads.

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    Senior Member MadSeason's Avatar
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    Quote Originally Posted by anti-social View Post
    Nice info! So I guess "budget" doesent mean bad? I guess the AFR's are for people that have the extra cash & dont care about comparisons, they just want the better heads.
    Your welcome, the ls7 setup is even cheaper than the patriots but requires a bigger bore. Those also out perform AFR

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    The AFR's will have thicker sections over a ported stock GM casting, so if you are spraying or FI that would be more reason for an aftermarket casting such as AFR, DART, etc. The heads are structurally more robust when finished. Patriot does nice heads though and a lot of guys make good power and are happy with them. But for spray or FI, aftermarket castings would be stronger.

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