Case question for possible location for crank trigger Options

[technicalninja]

What was the original use for the large hole on the flywheel side of the right (passenger) engine case?

Looks like it could have been a good flywheel lock location.

To me it looks like very good spot for a crankshaft position sensor...

What was its original reason for being there?

[technicalninja]

Thanks for other options guys.

The set up I have in mind would require nothing more than a fitted plug for the torque converter access hole, a magnetic sensor, and longer modified clutch plate bolts.

I'm a believer in "the simplest solution".

This also should be drop dead reliable with only the sensor as a possible failure point and should have easy sensor access.

I run an automotive AC specialist shop and have ideas for a much more modern compressor for this application. I want to leave as much room as possible between the crankshaft hub and the fan.

I'm going to attempt to install a modern variable displacement compressor and may need to make my own serpentine belt pully. The MS3X already has extra PWM outputs and should be able to control the compressor.

It looks like the Dub Shop may already have a serpentine pully available to work with his kit. I will ask them about this next week.

Thanks so much for the tips.

Rick