Timing marker tabs

[Fred H.]

I've come across several different timing marker tabs on timing chain cover for SBC with an 8" harmonic balancer. I assume the diferent tabs are for different year SBC motors. Looking for any information.

[David H.]

Fred

This might help with your question - marker tabs are going to reflect balancer configuration.

Link below has image below, a little ways down

Dave

https://garage.grumpysperformance.com/index.php?threads/timing-tabs-and-indicators.1015/

SBC Balancer Marks.jpg