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Re: What's the Verdict on Hardblock?
[Re: 340_Dart]
#529628
11/18/09 10:33 AM
11/18/09 10:33 AM
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Joined: Jan 2003
Posts: 13,369
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,369
Marion, South Carolina [><]
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Water temperature isn't the problem, it's the oil temperature you have to watch with a filled block if you're still going to drive it on the street. CHIP
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: What's the Verdict on Hardblock?
[Re: 340_Dart]
#529633
11/18/09 08:14 PM
11/18/09 08:14 PM
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Joined: Feb 2007
Posts: 5,080
organ
maximum entropy
master
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master
Joined: Feb 2007
Posts: 5,080
organ
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it's a powder (like cement, without gravel- you'll have to add that yourself  ) that you add water to. it's quite easy to work with.
for what is the good life if not doing things thoughtfully?
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Re: What's the Verdict on Hardblock?
[Re: 340_Dart]
#529634
11/18/09 08:26 PM
11/18/09 08:26 PM
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Joined: May 2005
Posts: 6,446
NJ-USA
HPMike
master
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master
Joined: May 2005
Posts: 6,446
NJ-USA
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Quote:
It's just a drag car , so I think I'll look into doing a short fill this winter
For that reason you should be doing a tall fill. Mopar blocks are particularly thin and it's really hard to find one with real sturdy walls. IMO a short fill is little more than a "better than nothing" deal on a dedicated drag car. It's not just for durability sake, there is power to be had in stable bores.
MB
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Re: What's the Verdict on Hardblock?
[Re: sg66mopar]
#529635
11/18/09 10:37 PM
11/18/09 10:37 PM
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Joined: May 2007
Posts: 446
oregon
savoyracer
mopar
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mopar
Joined: May 2007
Posts: 446
oregon
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Quote:
I ran a filled iron block for years. It actually made the motor cool faster between rounds. As stated earlier, this is for race use only, not the street. I also agree that Hardblok is the only product to use.
Get the block VERY level and keep the filler at least 1" below the water jackets. One of my blocks was done by a local machine shop. They had the block on an engine stand that drooped in the front and got the filler up too high in the back, blocking one of the rear water jackets. I didn't catch the problem until it had caused two heads to crack from the overheating. It took me over 8 hours to dig the Hardblok out of that water jacket and make a hole for the water to circulate.
...........same thing happened to me, I caught it in time, and made the machinist dig it out.
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Re: What's the Verdict on Hardblock?
[Re: blownzoom440]
#529637
11/18/09 10:49 PM
11/18/09 10:49 PM
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Joined: Jan 2003
Posts: 526
orange,tx
onebadstepside
mopar
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mopar
Joined: Jan 2003
Posts: 526
orange,tx
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I have a question about the hardblock....Can you get away with a short fill on limited street driving with a oil cooler...say no more than 30-40 miles at a time?thanks for any information
Small blocks rule!!!!!
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Re: What's the Verdict on Hardblock?
[Re: onebadstepside]
#529638
11/18/09 11:02 PM
11/18/09 11:02 PM
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Joined: Feb 2007
Posts: 1,025
Las Vegas, NV
dodgeboy11
super stock
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super stock
Joined: Feb 2007
Posts: 1,025
Las Vegas, NV
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Quote:
I have a question about the hardblock....Can you get away with a short fill on limited street driving with a oil cooler...say no more than 30-40 miles at a time?thanks for any information
Run an extra capacity oil pan and that oil cooler isn't a bad idea either. The hard blok also stabilizes the bottom of the block and keeps the bearing clearances constant. I say go for it and run an oil temp gauge.
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Re: What's the Verdict on Hardblock?
[Re: 65dragnet]
#529640
11/19/09 08:36 AM
11/19/09 08:36 AM
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Joined: Jan 2003
Posts: 13,369
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,369
Marion, South Carolina [><]
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A tall fill is usually up to an inch or so below the deck surface. The heads always have water circulating through them like normal, that doesn't change. Unless you fill the block too high and the water gets blocked from getting up to the heads. CHIP
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: What's the Verdict on Hardblock?
[Re: Kelob_pie]
#529643
11/19/09 02:24 PM
11/19/09 02:24 PM
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Joined: Aug 2003
Posts: 43,223
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,223
Bend,OR USA
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The bad thing about using any filler in a block is that the cylinder walls above the filler are at a different tempature than the wall portion below the filler do to coolant circulation, there is no coolant flow in the fill  I have measured a block on the engine dyno that was 120 F above the fill and 180 F at and below the fill level, that makes the cylinder walls expand differently also. The measurements where done with a hand held infra red gun You can feel the heat differences with your hand also I know guys that run filled blocks and swear by them, I have also out ran them in the same NHRA Stock class(B/SA) with no fill in my motor 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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