JE Forged Piston with 'KB' in the casting ? Options

[Literati914]

I bought a used set (500 miles) of flat top 96mm pistons back some time ago, and just got around to looking at them real good today.

The were described as being 96mm forged JE Pistons.. but they arrived in AA Piston packaging with a description of being 104mm - the pistons are used and do measure 96mm (so the box/packaging was recycled).

I can not find any JE indication but there is a "KB" symbol - does that mean that these are probably KE pistons? Supposedly they were on a Raby build.. and it looks like a valve touched the no.1 piston ever so slightly (fingernail sized mark). Thought?


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[Literati914]

They are KB pistons, it has Hastings rings, but EMW only used the 2nd Hastings ring. ..

Measure the pin and the pin height, 24mm stock, 22mm is mod or stroked, 1.7/1.8 vs 2.0 have different pin heights.
Best econo/mid class piston and I would choose them over JE for a street engine...

OK so first, is there a way to identify the cylinders as aftermarket EMW? (they could be something else I suppose, does stock have an advantage?)..or for that matter, the 2nd ring as being Hastings only? ..and btw, what do we recommend for the other rings? Stock Mahle maybe? With these supposedly having only 500 miles, if the rings looked good I thought I'd try to run them as is (but I didn't know about the 2nd ring thing then).

Also - I did measure the pins and they are 24mm, so not for a stoker build. But how is pin height measured so I can tell if they're for 1.7/1.8 or 2L ?

Thanks as always guys!


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