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help!!! newbie here

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Posted by chris on February 24, 2006 at 05:35:29 from (

i have a 1973 ford Ln600 dump truck with [what i believe is] a 330 or 340 small block original hd truck motor. [ i will edit the post when i look at the truck for the correct size motor] it has the 5 speed with 1st being the granny gear, and a 2 speed rear end. what motors are interchangeable with this truck and trans, the motor is blown, someone told me that you HAVE to replace it with a hd truck motor, the original size if possible. my question is why [as long as the trans bolts up to it] couldn't i put a 360 or 390 big block light truck motor in it, or if a big block will not bolt up, then a 351 ford? i found a used [ millage unknown] original replacement motor for it for $1200. now i know i can get a 351, 360, 390 for at or under $500, but i was told you cant put a car/ light truck motor in it, any advice would be greatly appreciated, any suggestions? thank you for your time, i will post the correct motor later on today, thanks

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