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Old 03-01-2016, 12:50 AM   #30
BossHogg69
motor exploder
 
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Join Date: Mar 2009
Location: Pittsburgh, PA
Posts: 2,346
Re: If you like destruction -

Well, I got the heads off, and I'm actually pretty surprised. The #1 intake snapped off and holed the piston, and slaughtered the cylinder. I can't believe the shortblock held together. I was wrong, and kinda happy about it. Cam, lifters, rockers, springs, retainers, etc are all cherry. Thank goodness, since I had quite a few $ tied up in it. Crank & rods and 7 pistons may be salvageable, but its no big deal either way. The cylinder head on the drivers (odd) side is toast. Some metal from #1 made it to #7 and cracked the head.

I'm open to any ideas or experiences with a valve breaking off like this. Enjoy the pics of carnage. I'll also include the pics from my earlier post that I couldn't get the upload last night.

First up the Derale junk... And no, nothing ever hit the fans. They cracked right on the parting line in the plastic where the braces make a twist to meet the hub. Looks like a design issue.
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Adam

1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac
1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's
1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac
2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80
2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac

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