LT4 hotcam, 304cc, GMPP 1.5 roller rockers
#17
In 93-94 when GM used a non vented opti, the opti was gear driven off a gear behind the camshaft sprocket I believe.
In 95 and up GM used a longer dowel pin the drove the opti. The dowel stuck out past the camshaft gear and went into the back of the optispark.
If you have a 95 and I assume you have a vented opti you will need a cam with the long dowel pin. If not the car won't run because it will not be turning the optispark.
If I have any of this wrong please feel free to correct me.
The hotcam is sold. The guy sent me the money about an hour ago.
#21
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sleeperZ96BT
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09-09-2015 08:28 AM