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  1. #1
    Join Date
    Apr 2004
    Location
    Cedar Rapids, IA
    Posts
    687

    Default A-body frame modifications

    I watched the shwartz chassis video http://184.154.165.50/~schwartz/vide...wartz-chassis/ about the frame twist or would you call it torsional rigidity?

    Boxing the frame seems to be the most budget minded way of stiffening things up. I was wondering if they make a kit or what other have done to modify their frames for A or G body cars?
    Some times I'm fast sometimes I'm half-fast

  2. #2
    Join Date
    Sep 2007
    Location
    Southern California
    Posts
    564
    Country Flag: United States

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    Convertible frames are already boxed. Late 60s GTOs had a heavy duty frame option which was a convertible frame under a coupe body. It also used all the convertible body mounts (which is more than the coupe). This is on my list of things to do.

    The El Camino guys are ahead of the game as their frames are boxed.

    The braces that re-enforce the rear lower control arm mounts do stiffen the frame up and they are cheap.

    More than this and I think you need to break out the welder.
    Jon U.

    1968 GTO - SC&C Suspension, Forgeline SO3 Wheels
    Build Thread
    1967 911 with a few mods

  3. #3
    Join Date
    Sep 2009
    Posts
    418
    Country Flag: United States

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    Quote Originally Posted by rohrt View Post
    I watched the shwartz chassis video http://184.154.165.50/~schwartz/vide...wartz-chassis/ about the frame twist or would you call it torsional rigidity?

    Boxing the frame seems to be the most budget minded way of stiffening things up. I was wondering if they make a kit or what other have done to modify their frames for A or G body cars?
    HPI makes a pretty sweet kit for $600

    http://hpicustoms.com/products.html

    Here is a build thread with a bunch of pictures of the kit installed.

    http://www.lateral-g.net/forums/show...&highlight=hpi

  4. #4
    Join Date
    Apr 2010
    Location
    Pittsburgh, PA
    Posts
    541

    Default

    that is pretty sweet, I just emailedm them about the kit
    72 buick skylark
    twin-turbo fuel injected buick 350..perhaps stroked to 370 in the works!

  5. #5
    Join Date
    Nov 2006
    Location
    Argyle, Texas
    Posts
    1,259
    Country Flag: United States

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    These guys have all kinds of kits for A bodies including a frame boxing kit:



    http://www.abcperformance.net/
    1970 Z28
    1969 Camaro
    1968 Firebird
    1957 Belair - in Sweden
    1966 Corvette coupe - sold

  6. #6
    Join Date
    Dec 2008
    Location
    Detroit
    Posts
    1,234
    Country Flag: United States

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    the HPI kit looks really nice. I sent them some emails a while back, but its not in my budget right now.
    Big dreams, small pockets....

    Chris--
    '72 Cutlass S LS2/4L70E
    Paradise Road, Rushforth Wheels, SC&C, ATS, Street Rod Designs, Speedhut, Twist Machine

    Project Motor City Madness



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