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454 cracked from freezing. heads crack too? always? sometimes? never?

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454 cracked from freezing. heads crack too? always? sometimes? never?

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Old 02-15-2015, 04:29 PM
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Default 454 cracked from freezing. heads crack too? always? sometimes? never?

bought a neglected arriva for the bravo setup. block cracked, manifolds cracked. do the heads survive, or usually die in this circumstance. they are probably peanuts anyway. just wondering if they were 100 dollar heads or 8 dollar heads at 10 cents a pound.
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Old 02-15-2015, 06:39 PM
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It's so f in cold out... bet there will be many cracked blocks to choose from this spring.I'd bet 10cents pound lmao
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Old 02-15-2015, 06:56 PM
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Last couple days have been brutal . Imo , kiss those heads goodbye unless the water was down some .
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Old 02-15-2015, 07:24 PM
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Pop off the intake. If the water passages are dry there may be a chance they lived.
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Old 02-15-2015, 07:49 PM
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this engine cracked a couple years ago. intake bolts so rusty i gotta take grinder to the heads. 226 total hours. shame what some people do to their boats.
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Old 02-15-2015, 08:09 PM
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derik,im afraid they are scrap iron.
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Old 02-15-2015, 08:33 PM
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Pull valve covers identify casting numbers and rock on bro . But remember 2 piece 4 bolt main caps which you may have , and 8 quart gen any pan have suprising value and easy pickings with the motor dumped on its head
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Old 02-15-2015, 08:37 PM
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Besides a brutal freeze pop on a gen 4 will zip the intake anyway .its ugly .i grab the crank pan caps and punt.
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Old 03-07-2015, 09:24 AM
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Had a couple blocks freeze up a few years back. Cracked above the lifter galleys and rnext to the freeze plugs on both sides. Blocks were junk but heads were fine.
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Old 03-07-2015, 09:27 AM
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GM should make freeze plugs out of paper mâché or PVC. I think I've actually seen three in my life time that actually suited their purpose. Lol
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