measurements of cub pistons

Lindsey Raddatz · Nov 30, 2014

Hoping someone has a cub piston that they can give me the measurements of the center of wrist pin to top of piston.

Trying to see if it will work in a Hercules ZXB engine that was used in the Avery/MM V tractors. Need a +.30 or larger set of pistons for tractor am fixing up.

Harry Klever · Nov 30, 2014

Don't these machine shop have books, on specifications, etc of that, maybe by now they have it on the net too!!!

T.R.K. · Nov 30, 2014

Cub piston measures 1-7/16 compression distance.

also has a .6876 piston pin.

compression rings 3/32 wide, oil ring 1/4" wide. But of course the cub rings will work on the cub pistons.

This from 1966 aftermarket(non IHC) parts catalog.

The catalog doesn't have the specs for the ZXB pistons.

Have you checked with Hercano Propulsion for exact replacment oversize pistons? Also, I have had success sleeving the block back to standard and using the old pistons in other engines.

measurements of cub pistons

Lindsey Raddatz

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Harry Klever

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T.R.K.

Well-known Member

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