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I am getting ready to install Crane 1.6 roller rockers and LT4 valve springs on my 94 LT1. Will I need to upgrade to the LT4 knock module ? If so, where is the module located, will I need to replace the knock sensors, and how much will this cost ?
For best results you should probably replace the knock module. It's in the computer, unbolt it and turn it over, there will be a little panel you can remove. Inside is your knock module. I think it costs around $50 and it will work just fine with your stock knock sensors.