Can a 3.898 Piston go into a 3.90 bore
03-26-2004, 12:40 PM
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Can a 3.898 Piston go into a 3.90 bore I ask because no shop around here has LS1/6 torque plates to finish hone a new 3.9 bore LS6 block to a 3.903 or 3.905 bore.
I imagine it will go in to the bore but I am not sure if the .002 gap is OK and can be made up with rings. Or am I freakin' stupid and I just need to get these finish honed by someone?
I imagine it will go in to the bore but I am not sure if the .002 gap is OK and can be made up with rings. Or am I freakin' stupid and I just need to get these finish honed by someone?
03-26-2004, 01:16 PM
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The finish hone puts the cross hatch pattern in the cylinder walls and that is what helps the rings seal. I would say that you do need the finish hone. Also a good machine shop will hone the block for each piston that will be put into that specific cylinder. Just my .02 c.
03-26-2004, 01:28 PM
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So that answers much of my question. The best way is to get the piston, mike each one, and finish hone to the specs of each piston. I guess that is the best way to do it.
I thought the LS6 block from GM was already finish honed to 3.9 and I wanted to avoid messing with that hone. But, I am not putting in new stock pistons.
I thought the LS6 block from GM was already finish honed to 3.9 and I wanted to avoid messing with that hone. But, I am not putting in new stock pistons.
