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  1. #1
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    TrailLeadr's Avatar
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    Default Separation is always hard

    But apparently not this time.
    I'm not usually one to start a post that pokes fun at a competitive brand, but this is just kinda sad. I was browsing around and I find a gallery of cracked ford 302 blocks.

    I needed to know what had happened to crack the block.
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    This makes you question Ford's slogan "Built to last"

    "So, what did cause the block to crack?" you ask. A mere tuning up to 480hp, and I'm guessing that's an over estimation.
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    This Block couldn't tear itself apart fast enough.

    Here's another, no claim of hp though (wonder if it was less, or more than the last)
    Click image for larger version. 

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    Last edited by TrailLeadr; 11-11-2010 at 05:31 PM.
    Patrick
    Rhode Island


  2. #2
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    Default

    This one claims 680hp prior to destroying itself

    Click image for larger version. 

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    Not likely you'd see a GM block crack under such low hp figures. If so I'd say it was improperly tuned and shook/rattled itself to death.

    Go Ford!
    Last edited by TrailLeadr; 11-11-2010 at 08:57 AM. Reason: formatting
    Patrick
    Rhode Island


  3. #3

    Default

    those are some pretty good cracks...from low hp. I rememeber my grandpas chevy 427 that was pushing 750hp and he ran it until he got sick of it
    Justin
    1990 Silverado Stepside



    2003 Olds Alero-
    64,XXX

  4. #4
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    Default

    I had a buddy that used to drag race a 428 Cobra Jet, & the top 2 inches of the #1 cylinder wall blew out. Looking at it closely & measuring the wall thickness we could tell that during casting it had suffered a core shift, leaving the wall only 1/8 inch thick near the top at the breach point. OOPS...
    Built To Last? Built Ford Tough? Ford Has A Better Idea? Maybe a better idea would be to learn how to cast blocks properly at the foundry...
    They DO make good boat anchors though

    "before it blew up, the 428 CJs best et 11.64 at 127 mph
    My 350 sbc best et 11.31 at 126 mph & it's probably "still running"...somewhere lol
    1988 Chevy C-3500 2wd (no pic)
    350 c.i. 5.7 L Stock Block, 4 Bolt Mains
    L-31 Vortec Heads, Edelbrock Cam & Intake,
    Holley 650, Flowtech Headers, Magnaflow exh.
    Jet Trans 700R4, B&M Ratchet, 4:10 gears,
    3" susp. lift kit "shadetree"
    No rev limiter, No speed limiter lol


  5. #5
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    Default

    Ford had a problem with the "emmission" blocks from the mid to late 70s and a few of the early 80s with them doing this. (ive seen a few do the same thing.
    I am a ford guy and a chevy guy. they both make awsome motors/trucks/cars etc etc etc.. but there WERE alot of blinding problems with fords casting process in those years, much like their trannies in the 92-96 models.
    the 350 is one of the best motors ever built even most ford guys that i know will attest to that.. Gm broke the mold when the decided to build it, and to this day Gm is still running the LS series motors with pushrods and making nearly as much power as ford (based on fords new V-6s and V-8s for 2011) when ford went to OHC in 1997... I love my 5.3L!!!
    Mike

    Currently

    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

  6. #6

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    Murdog you got a new truck? my favorite engine of all time is the 350 TBI, so easy to work on, cheap, and can make some great power
    Justin
    1990 Silverado Stepside



    2003 Olds Alero-
    64,XXX

  7. #7
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    Default

    Quote Originally Posted by ThatSilverStepside View Post
    Murdog you got a new truck? my favorite engine of all time is the 350 TBI, so easy to work on, cheap, and can make some great power
    Yep needed more room/power. And it was a straight trade so i couldnt complain. i like the 350TBI, but the new LS motors are so smooth.. (ive owned 3 of the 5.3L motors so far)
    Mike

    Currently

    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

  8. #8

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    awesome, I'm not around here much since I got the alero, still N/A but the motor is slowly getting built up (new LIM+UIM, Heads, Cam, Plug wires and TB...Trans build is next) the LS motors are nice but theres just something about them I don't like (probably the smoothness)
    Justin
    1990 Silverado Stepside



    2003 Olds Alero-
    64,XXX

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