Building a stronger block - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 23 (permalink) Old 02-05-2009, 11:59 PM Thread Starter
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Building a stronger block

At what point do you need to start lookin at a partial filled block or girddle? Are both of these streetable for a d/d?

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post #2 of 23 (permalink) Old 02-06-2009, 02:19 AM
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Re: Building a stronger block

I wouldn't yank a perfectly good (running) engine out unless you have big plans...

with that said...I wouldn't build a 500+hp engine without filling the block...unless it was going to STAY a 500hp engine.

We have a number of customers DD'ing (towing, working, driving) these trucks on filled blocks (up to 1.75" below deck surface) with no problems related to cooling.
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post #3 of 23 (permalink) Old 02-06-2009, 02:27 AM
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Re: Building a stronger block

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Originally Posted by golfer View Post
I wouldn't yank a perfectly good (running) engine out unless you have big plans...

with that said...I wouldn't build a 500+hp engine without filling the block...unless it was going to STAY a 500hp engine.

We have a number of customers DD'ing (towing, working, driving) these trucks on filled blocks (up to 1.75" below deck surface) with no problems related to cooling.

Dave how is the oil temps on a block filled that high? I know when I had a 460 bored and stroked to 540 back in the day it was filled about half way and the water temps were good but the oil temps would get alittle warm.

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post #4 of 23 (permalink) Old 02-06-2009, 02:43 AM
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Re: Building a stronger block

The first two we filled (dedicated pullers) were maxed out with data logging junk...juuuussstt in case anything got out of control...

nothing, nada...other than one clogged oil cooler (which did raise oil temps) ..but I think that was more from not cleaning the loose HardBlok particles out from the filled areas as well as it should have been...

but it wasn't for anyone really important...

just Charles.

We might recommend a coolant filter on the filled blocks...seen some small particles (like dust) in the coolant res...

but the alternative to not filling these things...is a little LESS than forgiving,
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post #5 of 23 (permalink) Old 02-06-2009, 03:06 AM Thread Starter
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Re: Building a stronger block

Well sence I have pmrs I am looking for a builder engine to tear down and build. I am shooting fo right around 500, but if I know me the building never ends. So if I am going to start playing the game I might as well do it right from the get go. So I should fill the block. What about the girdle?

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post #6 of 23 (permalink) Old 02-06-2009, 03:19 AM
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Re: Building a stronger block

A proper girdle is a good investment...
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post #7 of 23 (permalink) Old 02-06-2009, 03:23 AM
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Re: Building a stronger block

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A proper girdle is a good investment...
What is a proper girdle?
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post #8 of 23 (permalink) Old 02-06-2009, 03:38 AM
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Re: Building a stronger block

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What is a proper girdle?
...something that actually prevents the block & crank from flexing and keeps the main caps stationary.

not something that acts as a spacer for the main stud nuts.
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post #9 of 23 (permalink) Old 02-06-2009, 03:46 AM
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Re: Building a stronger block

sooo who makes a proper girdle?

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post #10 of 23 (permalink) Old 02-06-2009, 03:50 AM
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Re: Building a stronger block

I think I remember geoff thomas talking about machining out around the bolt holes of the caps and the block a little bit and driveing a hollow bushing in there to keep the caps from walking. Is that something that has been done or just something he was dreaming up?

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