Hello,
I just discovered you all today. I am back in hot rod building after 30 years away. No I have not lost my mind. The mistake I made was keeping my son away from my first love - small block chevy's. I need some assistance I think I have a couple of good four bolt 350 blocks both with the number 39700010 on the flange back by the bell housing area. Both have threaded holes in the lifter valley. Are these roller blocks? If so have any of you used stock GM roller lifters in a performance application? I have a lot to catch up on as you can see.
Thanks, Twolane