[Adger Smith]

Dave,
If a bottle last you 15 to 20 years then you aren't using it as much as I do in my shop. Send your old Loctite to me & I'll cycle it into use.
Art,
I use the red on flywheel bolts on my odd fire V-6 and blue on the Converter bolts. I use an L-9 bolt on the converter with fine thread poly lock nuts. Get ready to tighten things regularly. The harmonics of these non V-8 engines cause nuts & bolts & other parts to fall off. We re check the converter & tranny bolts & drive line every 3 passes. Motor plate & mid plate is another area that gets the same P/M schedule on the bolts. Using wrenches regularly is just the price we pay for running these combinations. Good luck...
Art, another thing to remember is to use a shouldered bolt. A long shoulder that goes into the flywheel & part way into the converter boss. You know the way Std. shift flywheels hold clutch covers on, in alignment. That helps to minimize the shear on the bolt by spreading out the load.