The old 305 hydrolocked, seized up and could not be rotated with a breaker on the crank. Fearing the worst, I pulled the heads to look at the pistons.

Can you tell which piston/pistons have a bent connecting rod?

Take a look at my earlier thread if you want to know how this happened. I go back and forth a few times from thinking its a starter issue to its hydrolocked. Finally i pulled the starter, replaced it, and the car was fine until the next big rain storm.

https://www.thirdgen.org/forums/tech...t=hydro+locked

This time the engine seized completely and you can see what happened here. soooo Hydro locked it was, all along, both times!!

 

looks like coolant to me, not from rain water. machine shop here you come

makes you wonder how many that just slap on head gaskets are playing with fire, doesn't it?

 

You should pull the plugs at the bottom of the block to drain the coolant from the block before pulling heads. Just draining the rad doesn't drain the block.

If the pistons are not seized in the cylinders and you can now bar the engine over, use a depth gauge to see how far up the cylinders each piston goes measured across the wrist pin. The ones that don't go up as far as the rest will have bent con rods. If it won't even turn over, there's no way to tell which con rods are bent.

Probably isn't even worth rebuilding. Cheaper to just buy a replacement engine.

 

Just by looking at the pictures, #6 and #7 definitely have bent rods as they should be higher up in their cylinders based on the positions of the other pistons.

Take a look at the second picture, #2 is the highest followed by 4, 6, then 8. Correct me If I'm wrong but that never happens in a normal v8 unless there are bent rods involved.