I took a big bolt and used a flap wheel and a flat file to carve it down to size. Lightly deburr your square edges to prevent it cracking when you put torque on it.
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You can try it but, your fueling tables will be somewhat off. What ECM do you have? You may be able to find a chip off another truck with a 350, the same trans as yours, and simply swap it out.Will my pcm be compatible with the increase in cubic inches? I have a set of 350 tbi injectors I intend to use, but otherwise I’m not sure what would need replacement.
Not as long as you have the same service number PCM. The BCC (Broadcast Code) chip contains the "tuned" .bin so, when you swap it in, you're running the same one you had before.2nd ECM has a different four letter code on the included chip and sticker.
This will cause problems. Correct?