I am checking with Corvette specific yards. They will have a better selection. The Corvette LT1 is specific to the Corvette. It had 4 bolt mains, whereas the other LT1 versions had 2 bolt mains.

The lessor LT1s, as used in the Impala SS, were 2 bolt mains and iron heads.

You see, the crate motor options (Golan, LPE, et.al.) are so damned expensive... I am leaning towards getting a junk LT1 long block and rebuilding it completely...

Thanks for the suggestion, tho!

Yuppers. That's my take on the subject.

To be honest, I don't have any faith in these salvage vendors if they are selling the motor without the matching/mating flywheel. Seems rather stupid to me.

I called Mr. Killibrew and talked with him about the flywheel and balancing the LT1. It was well worth the $45 for the call. I have a 92 Vette and was replacing the flywheel and clutch with OEM new products. He explained how the balancing procedure was done on the LT1. He mailed me a write up procedure on how they do it. It's trial and error, however, they have a few set positions (or patterns) of the weights that usually work if a vibration is present. It's labor intensive to try these placements as you have to insert the weights and run the engine looking for vibrations. If you still have vibrations, you remove the weights and try another pattern. So, if you're putting a dual mass on a previous auto tranny motor, you can achieve balance or at least remove the vibration.

I just now remembered. This is the Corvette Salvage Yard

(336) 629-3811

Name: Hunt Auto Parts.

Havent been but have ordered a few items from them. They were out of digidashes and bumpers last time I called so it is whatever he has I suppose.....