Block Filler

I have heard alot about block filler , It has got me wondering do you need to use it how do you know when you need to fill the block ? I am not building an engine right now I just have allways wanted to know about this . How much can you push an iron block without using block filler ?

 

filler

When I used iron blocks, always filled them to the bottom of pump holes. I ran tall deck truck blocks. The weight was more, but the performance and reliability was worth it. Had rods banging around the bottom end, and nicked it up. Never threw one away because of it.I think I put a sleeve in one once. .Wouldn't run one without it. Just one persons view of things. Don

 

Unless you plan to drive the thing on the street, I would fill it as full as I could. In my opinion it helps the taller deck motors more than the short ones, those cylinder walls are just tubes hanging from each end.

Make sure you fill it before you do any machine work to the block, they tend to shift around a little.

 

Yep! fill em' up to the top for me too
Make sure you allow plenty time to let the grout set, as it takes ages!