So normal cars knock when they are cold until the pistons or rods heat up and swell and take up the 'empty' space.
My car lately runs AWESOME until it gets to operating temp (it was wanting to overheat but I watched it and shut it off as I was driving). I pulled the thermostat to help keep it...
Pro 5.0 Shifter
4.6 DOHC Timing Cover
Bare 4.6 Cobra Heads
4.6 Cobra Cams (4 ea) SOLD
4.6 Cobra Crank
4.6 6-bolt Main Caps
4.6 timing chains
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