What piston will work??

[sweet97]

I have a 6 bolt with a near stock bore. When honed it will be around 3.3475" with stock being 3.346". I would like to use WISECO's but they need a tight clearance of .003". I realize pistons are machined with the stock bore in consideration but I was hoping there was a make that would be able to be used with the size bore I will have due to it's characteristics to expand more than another.
I am trying to avoid a bore on this block because it is so close. I will call some vendors but wanted to hear what some of you guys have gotten away with because not every bore/hone is perfect. Thanks, Mark

 

[IansRedTalon]

From my experience building engines, a good machine ship is going to ask to have pistons in hand before they do any machine work (boring/honing). Each cylinder is then bored/honed allowing for exact tolerances between piston and cylinder.

What I would do is find out if any pistons will work with the bore, and if they won't order pistons and get them in hand before you have any machine work done at all.

 

[DsMWookie]

Boring the block cost 75$ i'd really stress boring it so that everything is perfectly new. They bore the cylinder to the size of the piston with a standard its just "close" to what the OEM cylinder was supposed to be but over time it has worn some and changed shape.

 

[sweet97]

Yes, I've deceided to go with the overbore. Thanks, mark