Unstyled L Engine ?

ejb17 · Nov 26, 2014

I purchased an Unstyled L that is in a few pieces. How can I tell the difference between the Herc NXA, which should be in it, and the Herc NXB used in the styled L's?
Thanks

Bob · Nov 26, 2014

IIRC, the NXA has a 3" bore and a 4" stroke, and the NXB has a 3-1/4" bore and a 4" stroke.

ejb17 · Nov 26, 2014

Bob, Thanks. What if the heads are still on what can I look for?

Bob · Nov 26, 2014

Without a nameplate, I personally know of no way to tell externally, as, IIRC, the engine parts all interchange except the pistons and rings.

rbooker · Nov 28, 2014

easy to tell the hercules engines from the deere ones. One easy way is that Deere engines have flywheel housing cast into block where hercules is bolted on. On magneto side of the block on herc engines at the top next to the head there is a flat spot that has the engine serial number stamped into it and it should say nxa or nxb.

Unstyled L Engine ?

ejb17

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Bob

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ejb17

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Bob

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rbooker

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