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Thread: WTT 7.4 pushrods for 7.425

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  1. #1
    Join Date
    May 2008
    Location
    Crowder, OK
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    8,005
    Stock is 7.4, but I'm confused. If you're shaving your heads, you'd want something like 7.38....

    1969 Chevy RCLB C10 350/TH400 SOLD
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    2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
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  2. #2
    Join Date
    Feb 2010
    Location
    Odessa, texas
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    916
    Quote Originally Posted by pl4yboy View Post
    Stock is 7.4, but I'm confused. If you're shaving your heads, you'd want something like 7.38....
    I was thinking the same thing but my math isn't very good lol
    1983 Ford Ranger- 2.3 to 205k mile 6.0 swap

  3. #3
    Join Date
    May 2009
    Location
    Plainfield, IL
    Posts
    2,036
    unless you're going with a thicker then stock gasket...or are putting an odd cam in there, you shouldn't need LONGER.

    MidwestSS's cam called for 7.4s and if I believe there was actually a little too much pressure on them. I'm not sure what size he used/still has (he had a couple sets laying around). I am using 7.35's on mine, because my heads were shaved a little. They are probably still a little too long, but the lifters can eat some.
    blown transmissions are about as useful as 97% of the guys on this forum

  4. #4
    Join Date
    Aug 2007
    Location
    Honeywood, Ontario
    Posts
    6,994
    Yeah I dunno, 7.425's is what was recommended but makes no sense, I was in a daze apparently. Just have to measure for sure when the time comes.
    2006 Silverado
    Little Black Bitch

  5. #5
    Join Date
    Jul 2008
    Location
    Mesa, AZ
    Posts
    5,979
    I've got brand new in box Comp 7.425's that thunder wouldn't take back or exchange for 7.4's. They are still sealed in tge plastic wrap from comp.
    T-RAV
    99 GMC | 5.3 | Skinny White Guy Tuned

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