Engine noise

1961 CHEVROLET TRUCK
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FTACADENA
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I have a 1954 Chevy truck. It has a 6 cyl.250 engine. It also has an automatic transmission.Whenever i take off and give a good amount of gas there is a loud screeching sound and not a lot of power. Once it gets going it goes away. Few mechanics can't figure out what it is.It's not a belt issue,already ruled that out.1 mechanic said it sound like a metal scraping sound. Any ideas?
Jul 18, 2012 at 2:53 PM
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KHLOW2008
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If the engine is roaring while the vehicle is not accelerating as fast as expected, that could mean a problem with the transmission, especially the torque converter.
Jul 18, 2012 at 3:08 PM
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ASEMASTER6371
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250??? 235 was original or it could be the 218 which had no oil pump.

could you confirm please??

Roy
Jul 18, 2012 at 3:08 PM
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FTACADENA
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It doesn't have the original 235 in it. It got changed to a 250.
Jul 18, 2012 at 3:15 PM