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FE Power Forums => FE Technical Forum => Topic started by: fekbmax on February 01, 2022, 01:51:43 PM

Title: To fill or not to fill .
Post by: fekbmax on February 01, 2022, 01:51:43 PM
Pond HD aluminum block.  I plan on running the snot outa it. Race only.
No fill ?
Half fill ?
2/3 fill ?
That be the question. 
Title: Re: To fill or not to fill .
Post by: jayb on February 01, 2022, 06:21:53 PM
This is one of the newer Pond blocks, with the beefier main webbing, right?  If so, I wouldn't fill it.  One thing that is a big advantage for an aluminum block is being able to replace the sleeves.  If you fill the block a damaged sleeve would have to be bored out, and I think replacing a bored out sleeve might be problematic.
Title: Re: To fill or not to fill .
Post by: 428kidd on February 02, 2022, 08:52:00 AM
Plus one Jay!
Title: Re: To fill or not to fill .
Post by: pbf777 on February 02, 2022, 01:09:23 PM
If you fill the block a damaged sleeve would have to be bored out, and I think replacing a bored out sleeve might be problematic.

     Not sure of your concern here, as the only time this really would be problematic is in the instance of 'wet'-sleeves.  Otherwise, other than perhaps a little less elastcity in the cylinders requiring a little more 'push' on installation and paying closer attention to the fitment.  Otherwise the only real pain is the weight increase of the hole piece in handling; not so bad with aluminum blocks, but when someone brings in the cast iron, tall-deck, racing blocks filled,..............makes one wounder why I shouldn't change to the little four cylinder import stuff!   ::)

     And I generally, with press-in type sleeves as typically encountered, we will bore them out, as this reduces the strain on the block casting and reduces damage to the existing cylinder bores upon removal.   :)

     Scott.