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Thread: WTB: TRW exhaust valves

  1. 03-13-2025, 01:18 PM #1
    Bob Alfonso
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    WTB: TRW exhaust valves

    Looking for 2 pcs. of the 40mm TRW exhaust valves 91110541550. New preferred. Need as soon as possible. Hoping someone has 2 pcs. they want to sell before I buy new. I believe it is same for 2.2, 2.4 and 2.7 as well. Thanks in advance.
    ESR # 2300
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  2. 03-14-2025, 12:15 PM #2
    Bob Alfonso
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    Anyone have new exhaust valves available?
    ESR # 2300
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  3. 03-14-2025, 02:42 PM #3
    typ901
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    are TRW units simply re-boxed ATE parts ?
    84102 purchased in '85 FINALLY started driving it (2/2015)
    '73 911T original paint sunroof coupe waiting in the wings
    3 gauge Holbert 912... now for something completely different
    1940 Mercury town sedan
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  4. 03-15-2025, 02:50 AM #4
    Bob Alfonso
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    Quote Originally Posted by typ901 View Post
    are TRW units simply re-boxed ATE parts ?
    Honestly not sure if it is.
    ESR # 2300
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  5. 03-15-2025, 07:19 AM #5
    66S
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    There are two types of ate-TRW 2.2-2.7 valves,(not that anyone seems to care), sodium filled and bi-metal stainless later production. A magnet sticks to the head and stem of sodium filled. It does stick to the upper stem of the non-sodium because stainless tips can gall. Bi-metal seem to appear with the Federal Mogul-TRW brand, looks like KS owns TRW now I have one bi-metal and three sodium filled available unless you want a set.
    Last edited by 66S; 03-18-2025 at 04:11 AM.
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  6. 03-15-2025, 03:49 PM #6
    Bob Alfonso
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    Quote Originally Posted by 66S View Post
    There are two types of ate-TRW 2.2-2.7 valves, sodium filled and bi-metal stainless later production. A magnet sticks to the head and stem of sodium filled. It does stick to the upper stem of the non-sodium because stainless tips can gall. Bi-metal seem to appear with the Federal Mogul-TRW brand, looks like KS owns TRW now I have one bi-metal and three sodium filled available unless you want a set.
    I just need 2 more to complete a set. PM sent.
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  7. 03-17-2025, 07:53 AM #7
    VA_alfa
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    I have three of these valves available new

    T-TRW 3064 is marked near the top of the stem.
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    ward to driving my car!

    Early 911S Registry # 2863
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