thanks

standard 350 block is 197 LBS. aluminum 350 block is 90 LBS.

I searched and found my post

I weighed the 350 4-bolt block I have, theres nothing in it besides the main caps, bolts, and cam bearings, and it weighs 157lbs. I dont know if zippy was talking about a bare block or what, but thats what mine weighs.

this is from the gm performance parts book. 350 4 bolt block one piece rear main without the seal adaptor. part no. 10105123. lists it as 197 pounds.

Heh... thats exactly what I have....
I wonder where the extra 40 is coming from? Hmmm...

Occasional afternoon beers...