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Head Gasket Question

This is a discussion on Head Gasket Question within the Internal Engine forums, part of the LSx Technical Help Section category; i have a 2002 trans am ws6 with a sts turbo i am putting 6.0 heads on the ls1 and ...

  1. #1
    Member aquickfive0's Avatar
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    pewtr
    2002 Trans am WS-6

    Head Gasket Question

    i have a 2002 trans am ws6 with a sts turbo

    i am putting 6.0 heads on the ls1 and i am wondering which fel pro head gasket to use? and which valve cover gasket

  2. #2
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    I would use the GM MLS 6.0 head gasket.
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    Junior Member Eric@VictoryRacing's Avatar
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    I agree 100%. The GM MLS gasket will be fine for that application.

    Quote Originally Posted by Ed Blown Vert View Post
    I would use the GM MLS 6.0 head gasket.

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    Member aquickfive0's Avatar
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    pewtr
    2002 Trans am WS-6

    any1 know the model number of that 1 or the fel pro 1?

    remember turbo application

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    do not use the felpro 1041. the bore size is way too large. even for a 6.0L bore of 4.00". you need to use the head gasket for the LS1 motor as your cylinder diameter hasn't changed (3.898). get the 2003 MLS gasket for a LS1, not a 6.0L.

    Felpro 1041 Summit Racing

    Bore = 4.135"
    Compressed Thickness = .041"

    4.135 - 3.898 = .237" open area

    what can happen is carbon gets built up in this area and can cause detonation.

    now, looking on mrgasket website, they have a MLS gasket thats 4.060" diameter with a compressed thickness of .054". 3143G it says for 98-00 LS1. i know there was something about a notch needed for the older blocks. i'll try to look into it more later.
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  6. #6
    Member aquickfive0's Avatar
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    pewtr
    2002 Trans am WS-6

    i see pic u have 11.4 @ 119 i was doin 12.6 @ 114 with 5lbs goin up to 8 lbs on turbo

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    just add a nice 50 shot of n2o.

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    Member aquickfive0's Avatar
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    2002 Trans am WS-6

    link me to a site to buy that gasket and price? cant figure which 1 that is, which part number

  9. #9
    Member aquickfive0's Avatar
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    which arp bolts would you use also what part number from summitt

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    look at the underline numbers in my post. they are links.

    Quote Originally Posted by aquickfive0 View Post
    link me to a site to buy that gasket and price? cant figure which 1 that is, which part number
    Quote Originally Posted by mrr23 View Post
    do not use the felpro 1041. the bore size is way too large. even for a 6.0L bore of 4.00". you need to use the head gasket for the LS1 motor as your cylinder diameter hasn't changed (3.898). get the 2003 MLS gasket for a LS1, not a 6.0L.

    Felpro 1041 Summit Racing

    Bore = 4.135"
    Compressed Thickness = .041"

    4.135 - 3.898 = .237" open area

    what can happen is carbon gets built up in this area and can cause detonation.

    now, looking on mrgasket website, they have a MLS gasket thats 4.060" diameter with a compressed thickness of .054". 3143G it says for 98-00 LS1. i know there was something about a notch needed for the older blocks. i'll try to look into it more later.

  11. #11
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    Quote Originally Posted by aquickfive0 View Post
    which arp bolts would you use also what part number from summitt
    ARP134-3610

    i noticed you are in cocoa beach. i just got home from there. was over at the target in merritt island picking up some halloween decorations for the yard.

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