I need your help guys. I have an '85 camaro with a 305 4bbl carb and wanting to put in a 350. I have a 350 block with casting numbers 10066036. I was told it was a "hecho in mexico" 2 piece rear main seal and was made in 1994. Is this correct? Will it line up with my 700r4 tranny? I need some help on this information and would greatly appreciate any info about this stuff. You can reply back or email me at daddy33@hotmail.com Thanks again for any help. -Tino

 

All Chevy small block motors will bolt up to the 700 trans.

It's supposed to be a 2-piece rear main.

Should be a drop-in.

 

any small block lines up with the 700r4? i didnt know that, it doesnt matter what year the block was made or does it?

 

I think the only issue with the seal was with the flex plate/flywheel. Trans bolt patterns are the same.