Hi All,

What oversized pistons are available for an L-92 (4.065" stock)?

 

Mine has a set of Mahle's in it. Schwanke built the short block. They are a sponsor on here. I would contact them for the part number.

 

How much does your block need to clean-up? Are you needing a flat-top or some dish? We can get you into a variety of pistons depending on your needs. Some are 4.065", 4.070", 4.080", 4.100" etc depending on the application!

 

Matt,

The block has some pitting in one cylinder due to water setting. It will need some boring, how much is yet to be determined. I'll be going with a 4.0" stroke whenever the final bore is known. So, somewhere around 1.12" compression height?

If it makes the difference between, say, +0.005" and +0.015" over, can I get by with a few "pits" remaining after the bore job? My factory liners aren't perfectly centered. Would a few of these pits ruin the rings or create excessive blow-by?

 

Anybody ? ? ?

 

We have 4.070" available. It would really require seeing how much it takes to clean that one hole up, then you should make your piston choice.

 

And that's why I'd like to know what's available. I'm not gonna bore the block and then find out there isn't a piston to fit it.

 

You have shelf pistons and then you have custom pistons. You can have any size made that you need so there is alway a piston to fit. It's how much it takes to clean it up at this point and then you can determin what your options are for a piston. Also need to know what stroke your using?

 

Russ,

I can get any shelf stock piston in any bore you like. Don't be concerned. Just try to get to the next nominal size 4.070",.080", etc... They are all available in the compression heights necessary for your build.

Thanks,
Shane

 

I just bought some Mahle flat top 4cc 4.070

 

Thanks, Shane! Appreciate the straight answer to a simple question. Once my back gets "unkinked", I'll drop it by my machinist and have him take a look...