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Old 12-11-2002, 06:07 PM
ontokid ontokid is offline
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Post "problems with a crate motor 350/330hp??"

i have a 350/330hp crate motor vortec heads with the GM vortec aluminum intake w/egr, counter balanced flex plate, correct harmonic balancer per catalog, new distributor, fuel pump, knock sensor, temp sensor, oil sending unit, and all other "under hood parts & accessorise are all new including OE GM headers all the way back exhaust system w/magnaflow cats 3" and flowmaster 40'serise muuflers...
********* problem is there is a very *********
pronouced knock from the mid to lower part of eng on passenger side between cyl#4-6!!!! anyone else having or had this problem if so what was diagnoises?? any sugestions as the motor was the on floor display modle at my local GM dealer when purchesed in 04/00 and is so claimed by the dealer to be "out of warranty period" motor has only been ran poss 1hr idle to cruse rpm's...
the knock seems to go away just as the rpms come up and stays gone untill idle returns to normal. eng sounds strong and sees to run good. the eng was recently started after long and costly instalation period as i did not cut corners for my on going building of my truck.
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