??? Half filled
08-28-2010, 02:02 PM
#2
Well, I have done it on a 408 first generation small block. You buy a product like hard-bloc. It mixes with water. I filled my block through the soft plug openings to just below their level. When it sets up it is similar to concrete and stabilizes the cylinder walls. I run the motor in a 1955 Chevy on the street and have noticed no problems. I did go to a 7 quart pan which should help a bit with oil temps.
09-01-2010, 07:56 AM
#4
My 6.0L block 427 is filled all the way up to the waterpump ports. I drive it every day. I am about to see about an oil cooler. The water temps have a hard time getting up to 195°.
Last edited by 1CAMWNDR; 09-01-2010 at 12:30 PM.
09-01-2010, 10:08 AM
#5
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When you fill the block the water temp should not be affected much, if anything it may drop as the heat coming from the rings and piston contact can't reach the water in the lower filled area. In most cases the oil temp will go up as the piston "heat" will start going that direction. You may see higher gains in temp during a hard run as the capacity of water goes down which could show up as higher temps when loaded.
Kurt
Kurt
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09-01-2010, 02:35 PM
#8
It does wonders for maintaining cylinder integrity/rigidity when you overbore the cylinder. It is probably not required on an iron block with only .030" over, but over that I'd fill it 
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09-01-2010, 05:43 PM
#9
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Filling does the best you can for it to work! Core shift is the wildcard on that answer as the cylinders could have a thin spot that the power from boost will find. I personally never have overbored the 6.0 that big, so no real world experiance to share......
Kurt
Kurt
09-01-2010, 06:16 PM
#10
Good info. Thanks.
