RatBurner

Does anyone have a source or drawing of the bellhousing pattern dimensions for fabricating a transmission adapter? I think they would be ordinate dimensions about the crank centerline.
Thanks

Andy1

The bolt pattern is the same as a GEN I SBC with the exception that the 1:00 o'clock position (when facing the block) is not used. They also added the two bottom positions, but some folks don't use them. I used to have a drawing somewhere; otherwise the GEN I will get you started. The dowel pin positions and their bore diamemters of course require the closest tolerance.

Andy1

Novas Forever

Be aware that there are housings inside of the bellhousing area that will not allow a plate to set down flush with the mounting surface. I had to cut out the block plate for my Gen 1 scattershield to set flat.

RatBurner

Thanks for the info. I assumed it would not change much to use existing transmissions without redesigning them ($$).