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mahle 18:1 pistons discontinued- how much will 10 thou drop my comp ratio?
To do it right you would need to cc your combustion chamber of the heads and try to match them all. Measure the block and square it. Deck it if needed. Throw in the piston and measure the deck. With these figures you can determine the current compression ratio. Then adding the volume of the...- GJF
- Post #16
- Forum: GM 6.5 Diesel
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mahle 18:1 pistons discontinued- how much will 10 thou drop my comp ratio?
.030 is very small. Think of this, .002 is the average thickness of a human hair. If .010 shaved off and a .010 thicker head gasket is good for 19:1 then you can shorten the rods .020 and be done with it. the oil rings at even .100 wouldn't come close from coming through the bottom of the...- GJF
- Post #14
- Forum: GM 6.5 Diesel