Increasing block stability with cement filling
#16
Race Car
True while generally used on drag engines, I have had good luck doing half fills on street engines for decades now.
My current engine has over 10k street and drag miles now.
The filler I am speaking of is far superior to hard block and my current Moroso fillers.
My current engine has over 10k street and drag miles now.
The filler I am speaking of is far superior to hard block and my current Moroso fillers.
#17
Three Wheelin'
Join Date: Jul 2002
Location: Connersville IN
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I used hardblock on my early stang motors on the street with a/c just had to run a good oil cooler. I eventually went to a good block. The stuff is ok on the street depends how far you fill er up. The hardblock is formulated more for iron though
#19
https://rennlist.com/forums/944-turb...mod-story.html
Looks like Rage2 used Moroso Engine Block Filler.
Looks like Rage2 used Moroso Engine Block Filler.
#20
Pro
With my engine out and my block sitting there, I've been wondering if I should do this in preparation for running higher boost later on down the track. I have found some Moroso MO35571 online for a good price.
I have a query though, do you need to machine the bores after filling? I am worried that the filler might expand and deform the bores slightly.
I have a query though, do you need to machine the bores after filling? I am worried that the filler might expand and deform the bores slightly.
#22
Pro
No, this is more of a 'budget' build, so a deck plate is out of the question. The block filler seems cost effective and worthwhile though, just as long as the block really doesn't need any machining afterwards, which I am not sure about.
#26
Rainman
Rennlist Member
Rennlist Member
You "should" have the block finish-bored/honed after the filler goes in, in case it may have distorted the cylinders.
As far as a deck plate/girdle thing...I know open-deck Subaru guys have experimented with drilling in between the cylinder barrel and the block casting and fitting a pin to basically fix the barrel to the block.
As far as a deck plate/girdle thing...I know open-deck Subaru guys have experimented with drilling in between the cylinder barrel and the block casting and fitting a pin to basically fix the barrel to the block.