I've taken some blocks appart that had solid rust flakes from the freeze plugs on down and were still running cool. Another amazing Y-Block factoid. By the way, the early "hard blocks" often had concrete poured into them! Chuck

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

Ron, Exactly. Ted's better at explanations than I am. Did you ever notice how much rust and crud can build up in the block without affecting cooling. Most of the heat generated winds up at the top of the bore and in the cylinder heads. Cold as it is up there in New England you should never have a problem.

Frank/Rebop

Bristol, In ( by Elkhart) 

Most of the block water circulation takes place in the upper part of the block.  By using block fill in the lower portion of the block, then cylinder wall integrity (rigidity) is increased by simply shortening the amount of cylinder wall that can flex.  The shorter the unsupported part of the cylinder wall is, then the more rigid it becomes.  A side benefit to using a given amount of block fill is that the block cooling system can actually be more easily temperature controlled simply due to the coolant in the block being refreshed or purged much more quickly.  Less block coolant equals a quicker turnover time.  New engine designs now take this into account so that the engines can warm up more quickly for emission purposes.

Lorena, Texas (South of Waco)

Thanks Frank...I understand, but never heard of it being done. So if you fill the bottom 1/2 of the block with this hard setting liquid plastic, How does coolant circulate to those areas??  You must also be reducing the cooling capicity of the block somewhat.

Rono

  Ron Lane,  Meridian, ID

It's a hard set plastic, similar to Plastic steel or some of those products. Your machinist could probably do it. I'd pour it to just below the freeze plugs.

Frank/Rebop

Bristol, In ( by Elkhart) 

Frank;

I'm not familiar with block fill. How do they do that and can most shops do it?

Rono

  Ron Lane,  Meridian, ID

Ron, You could go .040 thats only another .005" (5 thou) off that wall. I would, and I'll bet Ted'll agree. I'd go some block fill at the bottoms of the cylinders and do it!

Frank/Rebop

Bristol, In ( by Elkhart) 

Charlie;

That's a good thought. I'll talk to the machine shop Monday and then give John M a call. So you guys naybe seeing a set of Probe Forged pistons and rings in the classified section soon.

Rono

  Ron Lane,  Meridian, ID

You can sell them and get a set of smaller bore pistons. I think you could get pretty close to what you paid for them even with the domes machined - for some that would be a bonus.


Lawrenceville, GA

I'm kinda locked in with the overbore because I already have John M's 331 cu.in. stroker kit with the forged pistons and have milled off all of the 10cc domes. So, if I can't use this block for a supercharged application, I need to look for another C2AE block.

Rono

  Ron Lane,  Meridian, ID