Re: LS6 Cam Shaft #3904366
According to Chevrolet records:
Cam #143 has:
*Lift-.497/Intake & .503/Exhaust
*Duration-348/Intake & 348/Exhaust...dated 1965
Cam #362 has:
*Lift-.520/Intake & .520/Exhaust
*Duration-316/Intake & 302/Exhaust...dated 1970
Both of these Cams are Mechanical lifter w/1.70 rocker ratio.
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