So, somebody share where this pre-fix information is coming from please I`m trying to learn more about my 250 Casting #328576= 67 to 76 250. I can not find info for prefix#f11081bl. Also looking for the chamber size and valve size for the head. In addition i would like to i.d. transmission #c242. Please share your site with us. Thanks in advance. Have fun day.
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